Aptitude | Mensuration 2D | Question 4

If diagonal of a square is 12. What is the area of the square?
(A) 68 sq. m
(B) 83 sq . m
(C) 72 sq. m
(D) 80 sq. m

Answer: (C)

Explanation: 2a2 = 122
a2 = 72

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