SOLUTION: The circumstances of a circle exceeds the diameter by 90cm. Find the area of the circle.

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Question 912353: The circumstances of a circle exceeds the diameter by 90cm. Find the area of the circle.
Answer by lwsshak3(11628) About Me  (Show Source):
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The circumference of a circle exceeds the diameter by 90cm. Find the area of the circle.
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let c=circumference=πd
d=diameter
c-d=90
πd-d=90
d(π-1)=90
d=90/(π-1)
d=90/(2.14)
..
area=π(d^2/4)
=π(90/2.14)^2/4≈1389
area of the circle≈1389 cm^2