Question

if the area of an equilateral traingle is 25✓3cm², find it's perimeter?​

Answer 1

Area of equilateral triangle=25√3cm²

√3/4×a²=25√3cm²

a²=25×4√3/√3

a²=100

a²=10²

a=10cm

Perimeter of triangle=3×a

perimeter of triangle=3×10

perimeter of triangle=30cm