Question

Find the total surface area of this cone.

Leave your answer in terms of .
15 cm
8cm
SA = [ ? ]cm2
Hint: Surface Area of a Cone = tre + B
Where e = slant height, and B = area of the base

Answer 1

200π cm^2

Explanation:

Sb = 8^2 π = 64π cm^2

a = sqrt2 [8^2 + 15^2] = sqrt2 [64 + 225] = sqrt (289) = 17 cm

Sl = 8x17xπ = 136 π cm^2

SA = 136π + 64π =200π cm^2