Question 22

Find the circumference (in cm) of a circle of radius 10.5 cm.

Solution

Radius of circle = $$r=10.5$$ cm

=> Circumference = $$2\pi r$$

= $$2\times\frac{22}{7}\times10.5$$

= $$44\times1.5=66$$ cm

=> Ans - (D)

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