Question

. In  ABC , a line DE , drawn parallel to base BC, intersects the sides AB and AC at points D and E respectively .If AD =2,BD = 4 and DE = 2,then base BC is equal to​

Answer 1

Answer:

In this case,

first, by mid - point theorem,

We can prove that

DE = 1/2 BC and DE || BC

So, BC equals 2 times DE.