Question

If the lateral surface of a cylinder is 132 cm² and its height is 7cm, then find radius of its base.

2 points

2cm

3cm

1cm

4cm

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Answer 1

Step-by-step explanation:

Given :

• Lateral surface area of a cylinder is 132cm²
• And it's height is 7cm.

To find :

• The radius

Solution :

We know that,

Lateral surface area of cylinder = 2πrh

According to the question,

➡ 132cm² = 2 × 22/7 × r × 7

➡ 132 = 44r

➡ 132/44 = r

➡ r = 3cm

Hence,

The radius is 3cm.