Find the area of the following circles, given that :

(a) Radius = 14 mm

(b) Diameter = 49 m

(c) Radius = 5 cm

(a) It is given in the question that,

Radius of the circle = 14 mm

We know that,

Area of the circle = πr^{2}

∴ Area = × 14 × 14

= 22 × 2 × 14

= 616 mm^{2}

(b) It is given in the question that,

Diameter of the circle = 49 m

Radius of the circle = m

We know that,

Area of the circle = πr^{2}

∴ Area =

= 11 × 7 × 49/2

= 1886.5 m^{2}

(c) It is given in the question that,

Radius of the circle = 5 cm

We know that,

Area of the circle = πr^{2}

∴ Area =

= 78.57 cm^{2}

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