Math, asked by lisaasa, 10 months ago

in completing a run of 3960 metres along a circular path a runner makes 10 revolutions then radius of the circle

Answers

Answered by rishabh1213

Answer:

Step-by-step explanation:

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lisaasa: thank you

Bhavyanayak: The answer is in terms of meters right?

Bhavyanayak: You have written centi meters??

rishabh1213: Answer is correct this is a common sense that everyone have

Bhavyanayak: I agree with you but I felt that it was my duty to inform about the mistake..

rishabh1213: Ok thanx for your duty

Bhavyanayak: Your welcome Mr. Serious..

Answered by Bhavyanayak

If 10 revolution equals 3960 meters,

Let us take circumference of the circle as x

10x = 3960m

x = 3960 ÷ 10

x = 396m

Circumference = 396 meters = 2πr

That is,

396 = 2 × 22/7 × r

396 = 44/7 × r

396 × 7 ÷ 44 = r

r = 63 m

Therefore, the radius of the circle is

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