Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

The surface area (in m2) of a sphere of radius 7 cm is: (Use $π=\frac{22}{7}$)

Options:

0.0616

6.16

61.6

0.616

Correct Answer:

0.0616

Explanation:

Radius of sphere = 7 cm 

Surface area = 4Πr2 = 4Π*7*7 = 4*22/7 * 7 * 7 = 28*22/10000

The correct answer is Option (1) → 0.0616