Arithmetic Ability
Area

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Q.

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?

View Answer

Correct choice: D

Explanation:

area of a square = a² sq cm length of the diagonal = 2a−−√ cm area of equilateral triangle with side 2a−−√ = 3√4*(2a−−√)2 required ratio = 3√4*(2a−−√)2:a2=3–√:2
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