Question

The sides of triangle A B C are 5 cm 8 cm and 7 cm respectively find its semi perimeter

Answer 1

Step-by-step explanation:

perimeter of triangle= A+B+C

=> 5cm+8cm+7cm= 20cm

then, its semi perimeter= 20/2= 10 cm

HOPE ITS HELP YOU

HOPE ITS HELP YOU THANKS ON MY ANSWER

Answer 2

Answer:

Given: The sides of a ∆ABC are 5 cm , 8 cm and 7 cm.

As we know that,the semiperimeter of a triangle (s) equals half the sum of its sides.

Therefore, s =A+B+C/2

s = 5+8+7/2

s = 20/2

s = 10