The circumference of a circle exceeds its diameter by 18 cm. Find the radius of the circle.
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Answered by
31
Given that circumference of circle = Diameter + 18.
2pir = 2r + 18
2 * 22/7 * r - 2r = 18
44r - 14r/7 = 18
30r = 18 * 7
30r = 126
r = 126/30
r = 4.2cm.
Therefore the radius of the circle = 4.2cm.
Hope this helps!
2pir = 2r + 18
2 * 22/7 * r - 2r = 18
44r - 14r/7 = 18
30r = 18 * 7
30r = 126
r = 126/30
r = 4.2cm.
Therefore the radius of the circle = 4.2cm.
Hope this helps!
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