Question

What is the length of BC?

Answer 1

75/4

Explanation:

Assuming BA and ED are parallel, we know thay the two triangles are similar.

So,

`(25-x)/(x)=(36)/(12) \\ \\ (25-x)/(x)=3 \\ \\ 25-x=3x \\ \\ 4x=25 \\ \\ x=(25)/(4) \\ \\ BD=25-(25)/(4)=(75)/(4)`