Question

In le ABC, D and E are midpoints of AB and AC. If DE = 5 cm then find the length of BC.

Answer 1

Answer:

Mid-Point Theorem :

The line segment joining the mid-points of two sides of a triangle is parallel to the third side and equal to half the third side.

On applying the midpoint theorem, we get

DE=

2

AC

=

2

7

=3.5cm