Question

Find the total surface area of a cylinder whose radius of base is 7 cm and height is 15 cm.

• A. 830π cm²
• B. 380π cm²
• C. 803π cm²
• D. 308π cm²

Answer 1

Answer:

D. 308π cm²

curved surface area=$2\pi r h$

$=2\times \pi 7\times 15$

$=210\pi$

circular area $=2\pi r^2$

$=2\pi 7^2$

$=98\pi$

adding this two area $=210\pi+98\pi=308\pi$