Question

The perimeter of an equilateral triangle is 60 m, its area is
(a) 103 m
(b) 153 m
(c) 20/3 m
(d) 1005 m​

Answer 1

Step-by-step explanation:

given perimeter of the equilateral triangle is 60m

that means 3a= 60

a= 20

area of an equilateral triangle is (√3/4)a²

=> (√3/4)(20×20) = 100√3

area of the given triangle is 100√3 m²

Answer 2

Answer:

hope this helps you

Step-by-step explanation:

Let each side of an equilateral be x.

Then, perimeter of an equilateral triangle = 60 m

x + x + x = 60 ⇒  3x = 60 ⇒  x = 60/3 = 20 m

Area of an equilateral triangle = √3/4 (Side)2 = (√3/4) x 20 x 20 = 100 √3 m2

Thus, the area of triangle is 100√3 m2.