The radius of the base of a cone is 5 cm and its height is 12 cm. Its curved surface area is

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KollegeApply · Accepted Answer

65$\pi$ cm2 Given: r = 5 cm, h = 12 cm Slant height of the cone, l = sqrt("r"^2 + "h"^2) = sqrt((5)^2 + (12)^2) = sqrt(25 + 144) = sqrt(169) = 13 cm Hence, the curved surface area of the cone =pi"rl" = (pixx5xx13) "cm"^2 = 65 $\pi$ cm2

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