Question

The semi perimeter perimeter of a triangle have side 10cm 20cm 30cm

Answer 1

Answer:

P = 60 cm , Semi P = 30 cm

Step-by-step explanation:

Let a =  10 cm , b = 20 cm , c = 30 cm

Perimeter           = a + b + c

                           = 10 + 20 + 30

                           = 60 cm

Semi perimeter =  Perimeter/2

                           = 60/2

                           = 30 cm

Hope it helps, Cheerio!