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Finding Square Root of a Number

A square of s...

Question

A square of side 6 cm was restructured into a rectangle having the same area and length 9 cm. What will be the width of the rectangle?

A

2 cm

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B

4 cm

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C

8 cm

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D

6 cm

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Solution

The correct option is B 4 cm
Area of square = $6 \times 6 = 36 c m^{2}$
Area of square = Area of rectangle
$\Rightarrow 9 \times b = 36 c m^{2}$
$\Rightarrow b = 4 c m$

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