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Find the total surface area of a cone whose radius is r/2 and slant height is 2l
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Find the total surface area of a cone whose radius is r/2 and slant height is 2l

User Gazala Muhamed
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Find the total surface area of a cone whose radius is r/2 and slant height is 2l-example-1
User Andrew Hoffman
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Total surface area of cone: πrl + πr²

Assuming the bottom of the cone is closed.

r = r/2, l = 2l

Total surface Area = π*(r/2)*2l + π(r/2)² = πrl + πr²/4

Total Surface Area = πrl + πr²/4
User Freddy Benson
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