Question

The perimeter of an equilateral triangle is 60 m. The area is
(a) 10√3 m²
(b) 15√3 m²
(c) 20√3 m²
(d) 100√3 m²​

Answer 1

Perimeter of Equilateral Triangle= 3×one side

60 = 3×one side of Equilateral Triangle

one side of Equilateral Triangle= 60÷3

one side of Equilateral Triangle =20m

Area Of Equilateral Triangle= √3a^2÷4 (here a is one side of Equilateral Triangle)

area of Equilateral Triangle= √3×(20)^2÷ 4

area of Equilateral Triangle = 100√3 m^2

Here is the Answer 100√3 m^2