SOLUTION: the slant height of a cone is twice it's base radius r, express the total surface area of the cone in terms of π and r
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Question 1142429: the slant height of a cone is twice it's base radius r, express the total surface area of the cone in terms of π and r
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
Base area =
Lateral surface area: where l is the slant height; so
lateral surface area =
Total surface area = base area plus lateral surface area.
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