Question 22

The circumference of a circle is 110 cm. Find its radius (in cm).

Solution

Let radius of circle = $$r$$ cm

=> Circumference = $$2\pi r=110$$

=> $$2\times\frac{22}{7}\times r=110$$

=> $$r=110\times\frac{7}{44}$$

=> $$r=2.5\times7=17.5$$ cm

=> Ans - (C)

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