Math, asked by harish00715, 7 months ago

Find the area of an equilateral triangle whose perimeter is 180 cm.​

Answers

Answered by VismayaUVP
5

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.

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Answered by davidkitten
1
A=side
Perimeter =3xA
180=3xA
A=180/3
A=60
Now
Area=root3/4xa^2
A=root3/4x60^2
A=root3x60^2/4
A=root3x3600/4
A=root3x900
A=900 root3
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