Math, asked by shikha6096, 7 months ago

the circumference of a circle exceeds the diameter by 30 .find the radius of the circle ​

Answers

Answered by kalyanink87gmailcom
1

Answer:

Ancient mathematicians figured out that the circumference of a circle is always a little more than three times the diameter of a circle. ... The diameter is always twice the radius, so either form of the equation works.

Step-by-step explanation:

mark this answer as brainliest answer

Answered by achyuthan02
2

Answer:

7 cms

Explanation:

Circumferene of circle = 2πr

given, circumference exceeds its diameter by 30 meters

i.e, 2πr = d+30. But, diameter(d) = 2r

2πr = 2r+30 => 2r(π-1) = 30 => r((22/7)-1) = 15

r = 15*(7/15) = 7cms

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