Mathematics, 04.12.2019 18:31, kc22
Why is the formula for curved surface area of a cone πrl? i just don't get how that makes sense, why not dlπ, so you find the circumference, and then times that by the length? doesn't that only give us half the curved surface area?
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Why is the formula for curved surface area of a cone πrl? i just don't get how that makes sense, wh...
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