Asked by Randy
the inner circumference of a ring is 1.2pi cm. the outer circumference of the ring is 2pi cm. find the area of the region bounded by the outer and inner circumference.
Answers
Answered by
drwls
The two radii are 0.6 and 1 cm.
The area of the bounded region is thus
pi[1^2 - 0.6^2] = 0.64*pi cm^2
The area of the bounded region is thus
pi[1^2 - 0.6^2] = 0.64*pi cm^2
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