Question

If the perimeter of a equilateral triangle is 180 cm. Then find ts area.​

Answer 1

Answer:

Perimeter of △ABC= 180cm. So the side of an equilateral triangle is 60cm. Area of the equilateral triangle is given as Area = √34x2 where x is the side of the equilateral triangle. Hence the area of the triangle is 1558.84cm2.

Answer 2

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Question :- If the perimeter of a equilateral triangle is 180 cm. Then find ts area.

Answer:-

• Given :- perimeter of equilateral triangle = 180 cm.

• RTF :- area of the triangle.

• Solution :-

perimeter of the equilateral triangle = 3*side

==> 180 = 3*side

==> 180/3 = side

==> side = 60

• therefore side of the triangle = 60 cm.

area of the triangle = √3/4 (side ^2)

$= \sqrt{3} \div 4(60 ^{2} ) \\ = 1558.85 \: cm^{2}$

• therefore area of equilateral triangle is 1558.85 .

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