Quantitative Aptitude ID : 92446

The length of diagonal of a square is $latex 15\sqrt{2}cm$. Its area is :
[A]250 sq.cm.
[B]225 sq.cm.
[C]112.5 sq.cm.
[D]450 sq.cm.

225 sq.cm.
Diagonal of square = $latex \sqrt{2}\times side$
$latex \therefore\sqrt{2}\times side = 15\sqrt{2}$
$latex => Side = \frac{15\sqrt{2}}{\sqrt{2}} = 15&s=1$
∴ Area of square = $latex (side)^{2}$
= 15 $Latex \times$ 15 = 225 sq.cm.
Hence option [B] is the right answer.


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