Find the area of the following circles , given that:
(a) radius = 14 mm (take = $\frac{22}{7})$ .
(c) radius =5 cm.

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Solution

Area of a circle $= π r^{2}$
(a) Radius $= 14$ cm
Area $= π (14)^{2} = \frac{22}{7} (14) (14)$
Area $= 616 m m^{2}$
(b) Radius $= 5$ cm
Area $= π (5)^{2} = \frac{22}{7} (25) = 78.5 c m^{2}$ .

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Similar questions

Find the area of the following circles, given that:

(a) radius = 14 mm (Takeπ) (b) diameter = 49 m

(T a k e π = \frac{22}{7})

(T a k e π = \frac{22}{7})

= 14 m m

= 49 m

= 5 c m

(T a k e π = \frac{22}{7})

R a d i u s = 14 m m (π = \frac{22}{7})

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