ABC26GN5041 · Volume and Surface Area

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

The total surface area of a solid hemisphere of diameter 14 cm, is

(a)$308 \mathrm{cm}^{2}$

(b)$462 \mathrm{cm}^{2}$

(c)$1232 \mathrm{cm}^{2}$

(d)$1848 \mathrm{cm}^{2}$

Answer

Answer (as printed): B

Explanation

Total surface area $=3 \pi R^{2}=\left(3 \times \frac{22}{7} \times 7 \times 7\right) \mathrm{cm}^{2}=462 \mathrm{cm}^{2}$.