Justify the formula for area of equilateral triangle i.e. ⎷3 / 4 a2 , using Heron’s Formula. [2 marks ] It is given that the diagonal of a square is 4 √2 cm.The perimeter of the square and a triangle is same.Find the semi-perimeter of the triangle. [
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It is given that the diagonal of a square is 4 √2 ... of equilateral triangle i.e. ⎷3 / 4 a2 , using Heron's Formula.
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