The radius of a cone is 4 m, height 5 m. Find the curved surface area?\nOptions:\n(A) 1\n(B) 3\n(C) 5\n(D) 7\n(E) 9 Stream of consciousness:
User
Cone curved surface area = πrl = 22/7 × 4 × 5 = 440/7 = 62 6/7\nSlant height (l) = √r(power2)+h(power2) = √16+9 = √25 = 5
Thus, the answer is (C).
Assistant