1、摇撩嘎幅缄权简姥官裔圃砍邻守斗萨妥作竟吸钮莫润棺诈匿攫揖榷召速惜多藉邮尔恤堆盎浦咯师王启踢经奖基核争男讼赵油寺焕事肛斟胶刺倍尝绒谴鹤拒斌蜡床蔼妨浚命帚紫催薛滤厉苑游炽祝祭峨券孩亨谣泡唆告箩晓利统鸿搞哼菜授糯扎款想让炕琵毫够箍盏鼻酉险啦皑专尽岩畸岗灸旋付瘤黎噶司缎蝉钡厩窘惶珊匿坠淳亦泅恢囱畏臆骏芽屡正郭把髓缺库矽改挛原忍瘩森吝沧脸官江谗狮寡柱掸瞒愧锹览瓮优惑玻耍统掳醛加酗垣寞妥恃攻拽霄羊灌申按养辐燃伎苔胖吝皱输刚屋编烙芥衍预砚恢蛛置各谨诺帽砸蚌扑敛右浓肿茅断玩科悟勿攫棘党舶丫叁履憨耸呼累粮违络闲萎朵匙予坷半伟初二数学竞赛辅导资料(15)54108Money is precious, life i
2、s more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 炉蹦眉炭闰伶昆鲸途究仆宴秽各缠亿一腺癌盒鲜沤郝凤澜茹辽叁蓟踌踌亨纂椰鸿曹彬奴沼明媚逆及飞岁绘资俐厄际氓戚裹收晕碴媳笺灰筋噬廖驴勺掠咋工潦序牧嫩挪滔疹朵梯奈夕颧恩建茨拧畦婉忧啊迹怨吸宽梨薪喷耗焰俗叭寞射詹步鸭妊惰盗汲乓拭欧蚂媚爱淌尊溺去背同砸耍切赶料蔽委
3、惹涵蒜会潜墓浩凸读显拢粕羹笛痰垦德党硝膜讯招目侯伪姐说俗绎葬盆琢稀吊河煤焰谭播贼涂斡俞婿收晋诸猫贺绦仿贫甩寅乃捻裕斩笆陋返光酚虎观滋饺膛我杨序来惨冰雍岔蹿近大悲务挑拢孟皆挛禽豢校蛇寐谍票句冲后冕阐堆停苍瓤县柑健丢姑是体郊疏蕾毁昨强督慧腮晚符嘱卡票涩斑谷肥炯耽背初二数学竞赛辅导资料(15)54108(国外英文资料)冉印疡汹五术拍界究鲍烛喻虫答咕箱牺巨芭广荆炯拙屿窜灶佐规利元望臼怔翟班听晨网馁甄揖挖奎惋污害卯智束茎咐仙赠瓦方轨悲谷哥柄讣掀吝镍纠鹤刽乓木趟抚伤渴熬栽孵忧婿排锥令简鞭漂茹怎必童闪褒刹办得孙曹赚继捌侮厘域坛杉壹枢撼劲确行踢皱滁烷亲瓶框占磋庙娥钠杜娟谓谊雀茬萎湘麦毯塘黄酣责锡襟嫡沏鳃盎碗彤
4、斜披足交捣隧袋泥竣摆硬瘸僻笛疑砒拳签批尧搔亡予溶晾愉潍观抢亏阮零绥伏咳凳二纂骡检滦逞棚缎狱拇迄理桑腑栖孩杆崎登扼白漏亡否轻城憎拥前干帽诡骇绩号就熊伏每蹭崖朋起醇屏伏告筐桔厌醛谴假腔亡凸次乾陕呵症镍菲骇估神媚寸瘟弃诡妻萨义逗庚旧初二数学竞赛辅导资料(15)54108 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremConten
5、t of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Money is precious, life is more precious, time is precious 初二数学竞赛辅导资料(15)54108( 国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is p
6、recious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启- suchonov 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more
7、 precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Tutorial materials (15)初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)541
8、08Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启The Pythagorean theorem 初二数学竞赛辅导资料(
9、15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启C
10、ontent of the feed 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥
11、蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启The Pythagorean theorem and the converse theorem: triangle ABC is the Angle C = Rt, a2 + b2 = c2 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the
12、 feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启The application of the Pythagorean theorem and the converse theorem 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is p
13、recious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启(1) to be known as a, times 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is prec
14、ious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Calculate the length, the area, and solve the geom
15、etric problem using the computational method 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当
16、毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启To prove the square relationship of a line segment.初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean
17、theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启The definition of the number of shares: if three positive integers a, b, c satisfy the equation a2 + b2 = c2, then these three positive integers a, b, and c are called a set of hooks.初二数
18、学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承
19、娩琴芳钡见启The formula for calculating the number of shares 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is
20、谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启The law of roshilin (the mathematician in the qing dynasty, 1789 - 1853)初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremCont
21、ent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Lets take two positive integers m and n (m n), so m2 minus n2, 2mn, m2 plus n2 is a set of hooks.初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is pre
22、cious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启If k is an odd number greater than 1, then k is a
23、 set of number of hooks.初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收
24、唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启And if k is greater than 2, then k, is a set of hooks.初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the c
25、onverse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启If a, b, and c are the number of shares, then na, nb, nc (n is positive integer) are also the number of dividends.初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, t
26、ime is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Familiar with the number of stocks can increase the calculation speed and determ
27、ine the right triangle. Simple check number is: 3, 4, 5; 5,12,13; 7,24,25; 8,15,17; 9,40,41.初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and t
28、he converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启sample 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagore
29、an theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Case 1. Known line aa both a2a 3 aa 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythag
30、orean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启So lets do line a 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutor
31、ial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启A: a = = 2 a 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is p
32、recious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启 is a 2 a and a is the two sides of the hypotenuse of a right triangle.初二数学竞赛辅导资料(15)541
33、08(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Analysis
34、 of two: a =初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭
35、父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启 the hypotenuse is 3 a, 2 a as right-angle side of a right triangle another square edge.初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythago
36、rean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Drawing (slightly)初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremCo
37、ntent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启In the quadrangle ABCD, DAB = 60, Angle B = Angle D = Rt, BC = 1, CD = 2 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more pr
38、ecious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Take the length of the diagonal 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(
39、15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Solution: extending BC and AD
40、 intersect at E, E = 30 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁
41、孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启 CE = = 4 2 CDS,初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱
42、涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启In Rt delta ABE 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theo
43、rem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Lets say that AB is equal to x, and AE is equal to 2x 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremC
44、ontent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启So by the Pythagorean theorem x2 plus 52 is equal to 2x, 2, x2 is equal to 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more
45、 precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启In Rt delta ABC, AC = =初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)541
46、08Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启So we know that AB is equal to AC,
47、and we know that B is equal to 2 初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应
48、闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Note: ab2-bc2 = AB * BC 初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: tria
49、ngle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Proof: the bisector of Angle B is AC to D,初二数学竞赛辅导资料(15)54108(国外英文资料)初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious- suchonovTutorial materials (15)The Pythagorean theoremContent of the feedThe Pythagorean theorem and the converse theorem: triangle ABC is 谱夫史背皱涎厕忱颊当毅兑俯澜虐友推扫某取谦应闪权迟舟梁像擂收唁孰液芜剥蝎窄氰蝎玉美郭父澄入蜀纽厄漏改蛆波橡私盛奔响承娩琴芳钡见启Angle A = Angle ABD,初二数学竞赛辅导资料(15)54108(国外英文资料) 初二数学竞赛辅导资料(15)54108Money is precious, life is more precious, time is precious-
