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If the side of an equilateral triangle is 10 cm, then find the area of the triangle.1. 10√3 cm22. 25√3 cm23. 50√3 cm2 4. 75√3 cm2

Answer» Correct Answer - Option 2 : 25√3 cm2

Given:

The side of the equilateral triangle = 10 cm

Formula used:

Area of equilateral triangle = (√3/4) × (side)2 

Calculation:

Area of the triangle = (√3/4) × 102 

⇒ Area of the equilateral triangle = 100√3/4 = 25√3 cm2 

∴ Area of the equilateral triangle is 25√3 cm2 



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