Find the circumference of the circles with the following radius: (Takeπ)

(a) 14 cm (b) 28 mm (c) 21 cm

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Solution

(a) r = 14 cm

Circumference = 2πr = 88 cm

(b) r = 28 mm

Circumference = 2πr = 176 mm

(c) r = 21 cm

Circumference = 2πr = 132 cm

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Find the circumference of the circles with the following radius: (Takeπ) (a) 14 cm (b) 28 mm (c) 21 cm

(a) r = 14 cm Circumference = 2πr = 88 cm (b) r = 28 mm Circumference = 2πr = 176 mm (c) r = 21 cm Circumference = 2πr = 132 cm

Find the circumference of the circles with the following radius: (Takeπ)

(a) 14 cm (b) 28 mm (c) 21 cm

(a) r = 14 cm

Circumference = 2πr = 88 cm

(b) r = 28 mm

Circumference = 2πr = 176 mm

(c) r = 21 cm

Circumference = 2πr = 132 cm