A hollow cylindrical pipe is open at both ends

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

Problem

A hollow cylindrical pipe is open at both ends. Which set of areas must be added to obtain its total surface area? (a)

\text{Outer curved surface area} + \text{inner curved surface area}

(b)

\text{Outer curved surface area} + \text{area of both circular ends}

(c)

\text{Outer curved surface area} + \text{inner curved surface area} + \text{area of both annular rings at the ends}

(d)

\text{Outer curved surface area} + \text{inner curved surface area} + \text{area of both circular ends}