Question

The circumference of the base of a right circular cylinder is 44 cm and height of the cylinder is 5 cm find the lateral surface area of the cylinder?
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Answer 1

Step-by-step explanation:

lateral area = 2 × pi × r × h

= 44 × 5

= 220 cm²

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Answer 2

✬ LSA = 220 cm² ✬

Step-by-step explanation:

Given:

• Circumference of base of right circular cylinder is 44 cm.
• Measure of height of cylinder is 5 cm.

To Find:

• What is the lateral surface area of cylinder ?

Solution: Let the meaure of radius of cylinder be r cm.

➟ Circumference of circular cylinder = 44 cm

➟ 2πr = 44

➟ 2(22/7)r = 44

➟ 44r/7 = 44

➟ r = 44(7)/44

➟ r = 7 cm

Now, we have

• Radius of cylinder = 7 cm
• Height of cylinder = 5 cm

As we know that

★ LSA of Cylinder = 2πrh ★

$\implies{\rm }$ LSA = 2(22/7)(7)(5)

$\implies{\rm }$ LSA = 44/7(35)

$\implies{\rm }$ LSA = 44 $\times$ 5

$\implies{\rm }$ LSA = 220

Hence, the lateral surface area of right circular cylinder is 220 cm².