the circumference of a circle exceeds its diameter by 30cm .find the circumference of the circle
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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
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