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Taking π = 3.14, find the circumference of a circle whose radius is (a) 8 cm (b) 15 cm (c) 20cm

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in Perimeter and Area of Plane Figures by (37.8k points)
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Taking π = 3.14, find the circumference of a circle whose radius is

(a) 8 cm 

(b) 15 cm 

(c) 20cm

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1 Answer

+2 votes
by (37.5k points)
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Best answer

a) Given r = 8 cm π = 3.14

Circumference of circle = 2πr

= 2 × 3.14 × 8 = 50.24cm

b) Given r = 15cm

Circumference of circle = 2πr

= 2 × 3.14 × 15 = 942cm

c) Given r 20cm

Circumference of circle = 2πr

= 2 × 3.14 × 20 = 125.6cm

by (15 points)
Thanks you a lot
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