Question

Total surface area of a cylinder whose radius is 4 cm and height is 10 cm is .

• A. $452{\text{cm}}^2$
• B. $342{\text{cm}}^2$
• C. $352{\text{cm}}^2$
• D. $652{\text{cm}}^2$

Answer 1

The correct option is C $352{\text{cm}}^2$

Given, the radius of the cylinder, $r=4\text{cm}$
and height of the cylinder, $h=10\text{cm}$

Total surface area of the cylinder $=2\pi r(r+h)=2\pi \times 4(4+10)=2\times \frac{22}{7}\times 4\times 14=352{\text{cm}}^2$

$\therefore$ Total surface area of the cylinder is $352{\text{cm}}^2$.