How do I find the radius of the base of a cone given its surface area of 500 pi and height of 15 cm?
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Assuming you are given the lateral surface area and the slant height, divide the lateral surface area by the product of pi and the slant height. If instead of the slant height you are given the perpendicular height, use Method 2 above to find the slant height, then multiply the slant height by pi, and divide that product into the lateral surface area to get the radius of the base.
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