The circumference of a circle exceeds the diameter by 16.8 cm find the radius of cicle
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Answered by
233
We know that circumference of a circle = 2pir.
We know that diameter = 2r.
Given circumference of a circle exceeds diameter by 16.8cm.
2pir - 2r = 16.8
2r(pi - 1) = 16.8
2r(22/7 - 1) = 16.8
2r(22 - 7/7) = 16.8
2r(15/7) = 16.8
30r = 16.8 * 7
30r = 117.6
r = 117.6/30
r = 3.92 cm.
Therefore the radius of the circle = 3.92cm.
Hope this helps!
We know that diameter = 2r.
Given circumference of a circle exceeds diameter by 16.8cm.
2pir - 2r = 16.8
2r(pi - 1) = 16.8
2r(22/7 - 1) = 16.8
2r(22 - 7/7) = 16.8
2r(15/7) = 16.8
30r = 16.8 * 7
30r = 117.6
r = 117.6/30
r = 3.92 cm.
Therefore the radius of the circle = 3.92cm.
Hope this helps!
Answered by
29
Answer:
RADIUS=3.925
Step-by-step explanation:
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