Lateral Surface Area Of A Cone
The lateral surface of a cone of radius r and slant height s can be flattened to a Pac Man shape:
The area of the shape is (r / s)πs2. Therefore, the lateral surface area of a cone of radius r and slant height s is πrs.
The area of the shape is (r / s)πs2. Therefore, the lateral surface area of a cone of radius r and slant height s is πrs.
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