Math, asked by bhadramanoj2010, 9 hours ago

The difference between the circumference and diameter of a circle is 21.4cm. Find the radius of the circle. Please tell answer with explanation.

Answers

Answered by kishorigandhi51

1

Circumference of circle 2πr

diameter 2r

so equation will be

C-d=21.4

2πr-2r=21.4

2r(π-1)=21.4 where π=3.14

2r*2.14=21.4

r=21.4/(2*2.14)

radius will be 5cm

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