Question

If the perimeter of an equilateral triangle is 180 cm. The its area will be

a) 900cm2

b) 900√3 cm2

c) 300√3 cm2

d) 600√3 cm2

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Answer 1

Answer :-

B) 900√3 cm sq.

Hope it helps you

Answer 2

Step-by-step explanation:

Perimeter is “the sum of all sides “ or this is a equilateral triangle so the perimeter is “3*side”

By giving question the perimeter is 180

So,we will find the side of this triangle

Perimeter= 3 X side

180=3 X side

Side =180/3

Side = 60

Now the area of a equilateral triangle is

A= (√3/4)(side)^2

A=(√3/4)(60)^2

A=(√3/4)(3600)

A=(√3)900

A=(1.7320)900. ( The value of √3 is 1.7320)

A=1558.85 cm^2.