two concentric circles are of radii 7cm and 5cm. find the area of the portion between the 2 circles
Asked by | 27th Feb, 2012, 07:22: PM
Expert Answer:
Reqd. Area = (pi)(72 - 52)= 3.14 * 24 = 75.36 sq. cm
Answered by | 28th Feb, 2012, 09:19: AM
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