What is the total surface area of a cyli

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

What is the total surface area of a cylinder having radius of base as 7 cm and height as 5 cm?

Options:

426 cm²

528 cm²

428 cm²

572 cm²

Correct Answer:

528 cm²

Explanation:

We know that,

Total surface area of a cylinder = 2πr(h + r)

We have,

Height =5 cm

Radius = 7 cm

= 2 × \(\frac{22}{7}\) × 7× (7 + 5) = 2 × \(\frac{22}{7}\) × 7× 12 = 528 cm²