Evaluate
\frac{2601\pi cm}{4}
Differentiate w.r.t. c
\frac{2601\pi m}{4}
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\pi \times 72.25\times 9cm
Calculate 8.5 to the power of 2 and get 72.25.
\pi \times 650.25cm
Multiply 72.25 and 9 to get 650.25.
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