Question
How do you calculate the lateral surface area of a right
circular cone if its diameter is 12 cm and its height is 8 cm?Solution
Radius of the cone = (12/2) = 6 cm So, slant height of the cone = √(82 + 62) = 10 cm So lateral surface area of the cone = π x radius x slant height = 60π cm2 Hence, option c.
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