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Find the area of the following circles, given that [Use π = 22/7]

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 Find the area of the following circles, given that [Use π = 22/7] 

(a) radius = 14 mm 

(b) diameter = 49 m 

(c) radius 5 cm

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(a) Area of circle = π r 2 

= 22 /7x14 x14 

= 22 x 2 x 14 = 616 mm2

(b) Diameter = 49 m

\ radius = 49/2 = 24.5 m

\ Area of circle = π r 2 

= 22/7 x 24.5 x 24.5 

= 22 x 3.5 x 24.5 

= 1886.5 m2

(c) Area of circle = π r 2  

= 22/7 x 5 x 5 

= 550/7 cm2

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