Question 23

Find the surface area $$(in cm^2)$$ of a sphere of diameter 14 cm.

Solution

Radius of sphere, $$r=7$$ cm

Surface area of sphere = $$4\pi r^2$$

= $$4\times\frac{22}{7}\times(7)^2$$

= $$88\times7=616$$ $$cm^2$$

=> Ans - (A)

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