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CAT 2017 Slot 2 QA Question & Solution

GeometryMedium

Question

Let ABCDEF be a regular hexagon with each side of length 1 cm. The area (in sq cm) of a square with AC as one side is

Options

$3\sqrt{2}$
$3$
$4$
$\sqrt{3}$

Solution

Question Figure

The length of the diagonals of a regular hexagon with side s are $\sqrt{3}s$.
Here length of AC = $\sqrt{3}s$ = $\sqrt{3}$ cms
Hence area of the square = $\sqrt{3}^2$ = 3 sq cm