A square whose area is 64 $c m^{2}$ has to be fenced . Find the total cost of fencing if the rate of fencing is ₹ 2 per metre.

₹ 32

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₹ 64

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₹ 108

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₹ 128

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Solution

The correct option is B
₹ 64

Area of square $= (s i d e)^{2}$

Side = 8 cm

Total cost = perimeter x cost of fencing

Total cost $= (4 \times 8) \times ₹ . 2$

$= ₹ . 64$

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c m^{2}

c m^{2}

Find the total cost of fencing a square whose area is 64 $c m^{2}$ , if the rate of fencing is ₹ 2 per meter.

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