英文奥数求面积as the following picture shows ,the area of the isoceles triangle is 140 c㎡ ,the two equal sides are 20 cm each ,point on the third side at the random ,the length of the two vertical lines are acm and bcm .question:what length

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/27 19:39:38
英文奥数求面积as the following picture shows ,the area of the isoceles triangle is 140 c㎡ ,the two equal sides are 20 cm each ,point on the third side at the random ,the length of the two vertical lines are acm and bcm .question:what length
x͎0_Ū40v$aCKٰ@bĂ0/ˠx nt=+}>άfz>CBeu׮)QTXu_lXv]M4e= 0R^aYFӑF` 5f "LTm2ToLڵk~kCT5Hv\>8ߜ.9q6`qr`-Jj=]q,0NzW6ss rR0B 2& %D2 ZXs I-a9ь-R2!I0>x^c1L3B"+#9I+i/fm>^n}#5q6"7cF2q\&Ĥ$L g+DGr).,HJ3cT\yc2eOBOl܉s:?S|z} w'

英文奥数求面积as the following picture shows ,the area of the isoceles triangle is 140 c㎡ ,the two equal sides are 20 cm each ,point on the third side at the random ,the length of the two vertical lines are acm and bcm .question:what length
英文奥数求面积
as the following picture shows ,the area of the isoceles triangle is 140 c㎡ ,the two equal sides are 20 cm each ,point on the third side at the random ,the length of the two vertical lines are acm and bcm .question:what length is "a+b"?

英文奥数求面积as the following picture shows ,the area of the isoceles triangle is 140 c㎡ ,the two equal sides are 20 cm each ,point on the third side at the random ,the length of the two vertical lines are acm and bcm .question:what length
如图

(a+b)x20/2=140
a+b=14

20*a/2+20*b/2=140 ; a+b=14