Question 21

The area of a square is $$30.25 cm^2$$. Find its perimeter (in cm).

Solution

Let side of square = $$s$$ cm

=> Area = $$s^2=30.25$$

=> $$s=\sqrt{30.25}=5.5$$ cm

$$\therefore$$ Perimeter = $$4\times5.5=22$$ cm

=> Ans - (C)

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