The radius of the base of a solid right circular cone is 8 cm and its height is 15 cm. The total surface area of the cone is:

120 $\pi$ 200 $\pi$ 128 $\pi$ 136 $\pi$

200 $\pi$

We know that, l2 = r2 + h2 Total surface area of cone = πr (l + r) We have, r = 8 cm h = 15 cm According to the question, l2 = 82 + 152 l2 = 64 + 225 l2 = 289 l = 17 Total surface area of cone = π × 8 × (17 + 8) = π × 8 × 25 = 200 π