Question

Find semi-perimeter of an equilateral triangle with side 15 cm.​

Answer 1

Answer:

perimeter would be 15+15+15=45

so semi perimeter=45÷2=22.5

Please mark me as brainliest

Answer 2

Perimeter of the triangle = 15 cm

15 cmas you know that in an equilateral triangle all sides are equal and the number of sides are 3 so to find the length of each side

= 15/3=5 cm .