Question

perimeter of triangle is 180 degree then its area is? ​

Answer 1

Answer:

I'm also in class 9

I asked just like that

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Answer 2

Answer:

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.