A spherical orange is cut about the vertical axis into 8 equal slices as shown above.
What is the ratio of the total surface area of the 8 slices to that of the original orange?
A spherical orange is cut about the vertical axis into 8 equal slices as shown above.
What is the ratio of the total surface area of the 8 slices to that of the original orange?
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\(S_{slices}=4\pi r^2+4\times \pi r^2\\ S_{orange}=4\pi r^2\\ \color{blue}S_{orange}:S_{slices}=1:2\)
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