Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

The curved surface area of a hemisphere with radius 7 cm is: (Take π = $\frac{22}{7}$)

Options:

616 cm2

385 cm2

462 cm2

308 cm2

Correct Answer:

308 cm2

Explanation:

We know that,

Curved surface area of hemisphere = 2πr2 

We have,

Radius of hemisphere r = 7 cm

Curved surface area of hemisphere  = 2 × \(\frac{22}{7}\) × 7× 7 = 308 cm2