Question

In △ A B C , ∠ B = ∠ C and A B = 1.5 ( B C ) . If perimeter of the triangle is 8 cm, then AC is equal to ______cm.

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