Question

The side of a square is equal to the perimeter of an equilateral triangle of area 196√3 cm2 . Find the area of the square? 

A 3600 cm² Correct Answer Incorrect Answer
B 5184 cm² Correct Answer Incorrect Answer
C 6084 cm² Correct Answer Incorrect Answer
D 7056 cm² Correct Answer Incorrect Answer

Solution

Area of equilateral triangle = (√3 x side2)/4 ⇒ (√3 x side2)/4 = 196√3 ⇒ Side = 28 cm Perimeter of equilateral triangle = 3 x side = 3 x 28 = 84 cm Side of square = 84 cm Area of square = (Side)2 cm2 Area of square = 7056 cm²

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