Question

If one side of equilateral triangle is 20cm then what will be the semi perimeter

Answer 1

Answer:

30 cm

Step-by-step explanation:

An equilateral triangle is a triangle with all the sides equal in length.

So in your case the triangle has all its three sides equal in length

So let the sides be a, b , c

a=b=c=20cm  (equilateral triangle)

so formula of semi perimeter S= $\frac{a+b+c}{2}$

Subtitute the values in your case

S=$\frac{20+20+20}{2}$=$\frac{60}{2}$=30

So semi perimeter S=30 cm

HOPE IT HELPS!!!

MARK AS BRAINLIEST !!!!!!!