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The perimeter of an equilateral triangle …

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The perimeter of an equilateral triangle is 60m . The area is

Posted by Adarsh Dubey 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Meenkashi Singh 5 years, 1 month ago

Let each side of an equilateral be x. Then, perimeter of an equilateral triangle = 60 m x + x + x = 60 ⇒ 3x = 60 ⇒ x = 60/3 = 20 m Area of an equilateral triangle = √3/4 (Side)2 = (√3/4) x 20 x 20 = 100 √3 m2 Thus, the area of triangle is 100√3 m2.

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Gaurav Seth 5 years, 1 month ago

Let each side of an equilateral be x.
Then, perimeter of an equilateral triangle = 60 m
x + x + x = 60 ⇒ 3x = 60 ⇒ x = 60/3 = 20 m
Area of an equilateral triangle = √3/4 (Side)² = (√3/4) x 20 x 20 = 100 √3 m²
Thus, the area of triangle is 100√3 m².

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