Solve for A
A=128\pi \approx 402.123859659
Assign A
A≔128\pi
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A=\frac{1}{2}\pi \times 16^{2}
Reduce the fraction \frac{180}{360} to lowest terms by extracting and canceling out 180.
A=\frac{1}{2}\pi \times 256
Calculate 16 to the power of 2 and get 256.
A=\frac{256}{2}\pi
Multiply \frac{1}{2} and 256 to get \frac{256}{2}.
A=128\pi
Divide 256 by 2 to get 128.
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