Question

The measures of the sides of a triangle are 15 cm, 17 cm and 20 cm. Find the semi- perimeter of the triangle.

Answer 1

Step-by-step explanation:

side of a triangle,

where a= 15 cm

b= 17 cm

c= 20 cm

semi perimeter of triangle= a+b+c/2

= 15+17+20/2

= 52/2

= 26