Identify the correct expression for the curved (lateral) surface area of a right…

MATHEMATICS · Single correct · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes

Problem

Identify the correct expression for the curved (lateral) surface area of a right circular cone having radius

r

and slant height

l

. (a)

\pi r (l + r)

(b)

2\pi r l

(c)

\pi r l

(d)

\pi r^{2}