Question

The perimeter of an equilateral triangle is 60m.Then find its area.

Answer 1

Answer:

173 m²

Step-by-step explanation:

perimeter of equilateral triangle = 3 × side

60 = 3 × side

therefore, side = 60/3

= 20 m

Now,

area = (√3 × {side}²)/4

= √3 × (20)²/4

= √3 × 400/4

= √3 × 100

= 100 √3

= 100 × 1.73

= 173 m²