ABC26GN4885 · Volume and Surface Area

Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: · Marks: · Difficulty:

If the radius and height of a right circular cylinder are 21 cm and 35 cm respectively, then the total surface area of the cylinder is

(a)7092 sq cm

(b)7192 sq cm

(c)7292 sq cm

(d)7392 sq cm

Answer

Answer (as printed): D

Explanation

Total surface area $=2 \pi r(h+r)=\left[2 \times \frac{22}{7} \times 21 \times(35+21)\right] \mathrm{cm}^{2}$ $$=7392 \mathrm{cm}^{2} .$$