Question

if the perimeter of an equilateral triangle is 180cm.then the area of triangle is?​

Answer 1

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.

Answer 2

perimeter = 3 × side

180 = 3 × side

side = 180/3

side = 60

NOW ,

area of triangle = (√3/4) side ^2

A = (√3/4) (60) ^2

A = (√3/4) 3600

A = (√3) 900

A = 1.7320 × 900

A = 1558.85 cm^2