the circumference of a circle exceeds its diameter by 30cm .find the circumference of the circle
Answers
Answered by
5
2πr = 2r + 30
2πr - 30 = 2r
r = πr - 15
22r/7 - r = 15
15r/7 = 15
r = 15*7/15
r = 7
circumference = 44
2πr - 30 = 2r
r = πr - 15
22r/7 - r = 15
15r/7 = 15
r = 15*7/15
r = 7
circumference = 44
Similar questions