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OpenStudy (anonymous):
Find the area of a ring bounded by circles with radii 11 cm and 8 cm. (Show the solution. Thanks)
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OpenStudy (campbell_st):
|dw:1343123741236:dw| its the area of the big circle - area of the small circle \[A = \pi \times 11^2 - \pi \times 8^2 \]
OpenStudy (anonymous):
That's the answer? :">
OpenStudy (campbell_st):
that will give you the answer... you need to evaluate it
OpenStudy (anonymous):
Solve it more..
OpenStudy (anonymous):
What is 11*11 = ??
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OpenStudy (anonymous):
|dw:1343124272826:dw|
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