Question

In a triangle ABC , the sides AB=4.5 cm, BC=5 cm and its perimeter is 13 cm, what is the length of the side AC?

Answer 1

Answer:

perimeter of∆ABC =SUM OF ALL SIDE

13CM =AB+BC+AC

13=4.5+5+AC

13=9.5+AC

AC=13-9.5

AC=3.5cm

Answer 2

Step-by-step explanation:

Perimeter of triangle = sum of all three sides

13 cm =. 4.5 + 5 + x

13 cm = 9.5 + x

13 - 9.5 = x

3.5 = x

so, length of side AC = 3.5