Question

The semi perimeter of an eqilateral triangle is 30cm, length of sides is?

Answer 1

Answer:

20 cm.

Step-by-step explanation:

semi perimeter of an equilateral triangle = 30 cm

let perimeter be p

semi perimeter = p/2

p/2 = 30

p = 30×2 = 60 cm

Then put the formula of perimeter of equilateral triangle : 3×side.

=> 3×side = 60 cm

=> side = 60/3 cm = 20 cm.