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you plan to cover the entire surface area of a cylindrical dart board with cork. find the surface area of the dart board if the radius is 7 inches and is is 3/4 inches thick.
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you plan to cover the entire surface area of a cylindrical dart board with cork. find the surface area of the dart board if the radius is 7 inches and is is 3/4 inches thick.

User Coolcake
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1 Answer

3 votes
so the amount needed=area of circle times height
area formula=pi times radius^2
height=3/4

so
pi=aprox 3.14
radius=7
3.14 times 7^2
3.14 times 49
153.86
times 3/4
115.395 in^3

answer is 115.4 cubic inches


User Oleksii Moiseenko
by
7.5k points
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