Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

The volume of a solid right circular cylinder is 5236 cm$^3$, and its height is 34 cm. What is its curved surface area (in cm$^2$)? (Take $\pi = \frac{22}{7}$)

Options:

1650

1573

1804

1496

Correct Answer:

1496

Explanation:

We know that,

Volume of cylinder = πr2h

Curved surface area of cylinder = 2πrh

We have,

The volume of cylinder = 5236 cm3.

Height of the cylinder = 34 cm

According to the question,

= πr2h = 5236

= \(\frac{22}{7}\) × r2 × 34 = 5236

= r2 = \(\frac{5236×7}{22×34}\)

= r = \(\sqrt {49}\) = 7 cm

Now, Curved surface area of cylinder = = 2 × \(\frac{22}{7}\) × 7 × 34 = 1496 cm2