Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The surface area of a sphere is 2464 cm3. Find the radius of the sphere. [Use π = $\frac{22}{7}$]

Options:

14 cm

28 cm

42 cm

40 cm

Correct Answer:

14 cm

Explanation:

We know that,

Surface area of sphere = 4πr2

We have,

Surface area of sphere = 2464 cm2

= 4 × \(\frac{22}{7}\)× r2 = 2464

= r2 = 196

= r = 14