AIR MATH

Math Question

51 point
How many square inches of fabric are needed to make a tennis ball with a radius of 2 inches?
\( S A=4 \pi r^{2} \)
\( S A=2 \pi r^{2}+2 \pi r h \)
\( V=\pi r^{2} h \)
\( V=\frac{4}{3} \pi r^{3} \)

Solution

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