Question

HELP ME PLEASE!!!!
ΔAXY ~ ΔABC. What is the value of BC

Answer 1

BC = 28
`(1)/(3)` ft

Explanation:

Given that the triangles are similar then the ratios of corresponding sides are equal, that is

`(AX)/(AB)` =
`(XY)/(BC)` , substitute values

`(12)/(20)` =
`(17)/(BC)` ( cross- multiply )

12BC = 340 ( divide both sides by 12 )

BC =
`(340)/(12)` =
`(85)/(3)` = 28
`(1)/(3)`