Question

the area of an equilateral triangle which is inscribe in a circle of radius 2a cm is

Answer 1

We know that area of an equilateral triangle
= √3a²/4
=√3 (2a)² / 4
=√3 (4a²) / 4
=4√3 a² / 4
=√3a²

Hence area of the equilateral triangle = √3a²

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