Question

ind the perimeter of the AABC if
a) AB = 7 cm, BC = 8 cm and CA = 9 cm​

Answer 1

Step-by-step explanation:

perimeter=AB+BC+AC

=7+8+9

=24cm

Answer 2

Answer:

3.5cm

Step-by-Step Explanation:

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 = AC/2 = 7/2 = 3.5cm