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An equilateral triangle is described on the diagonal of a square. What is the ratio of the area of the triangle to that of the square?

Correct Answer: 3^(1/2) :2

Explanation:

area of a square = a² sq cm


 


length of the diagonal =  2 a  cm


 


area of equilateral triangle with side   2 a = 3 4 * 2 a 2
required ratio =  3 4 * 2 a 2 : a 2 = 3 : 2


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