Question

Find the total surface area of a cylinder with diameter of base $7cm$ and height $40cm$.

• A. $1016c{m}^2$
• B. $880c{m}^2$
• C. $1540c{m}^2$
• D. $957c{m}^2$

Answer 1

The correct option is D $957c{m}^2$

we k.n.t total surface area of cylinder $=2\pi r(r+h)$.

Given $d=7cm$ and $h=40cm$ .

Total surface area $=2\pi r(r+h)$

$=2\pi \times 3.5\times (3.5+40)=956.13$

$\therefore T.S.A=957$ $c{m}^2$.