Question

the the circumference of the base of a right circular cylinder is 220 CM if the height of the cylinder is 2 metre find the lateral surface area of the cylinder ​

Answer 1

Answer:

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Answer 2

✬ LSA = 4.4 m² ✬

Step-by-step explanation:

Given:

• Circumference of the base of a right circular cylinder is 220 cm.
• Height of the cylinder is 2 m.

To Find:

• What is the the lateral surface area of the cylinder ?

Solution: Circumference of base is 220 cm i.e

➯ 2πr = 220

$\implies{\rm }$ 2 x 22/7 x r = 220

$\implies{\rm }$ 44r/7 = 220

$\implies{\rm }$ r = 220 x 7/44

$\implies{\rm }$ r = 1540/44

$\implies{\rm }$ r = 35 cm.

Radius of cylinder in metre = 35 x 1/100 = 0.35 m

Now, we have ,

Radius = 0.35 m & Height = 2 m. Therefore, lateral surface area of cylinder➯

★ LSA of Cylinder = 2πrh ★

$\implies{\rm }$ LSA = ( 2 x 22/7 x 0.35 x 2 ) m²

$\implies{\rm }$ ( 44/7 x 0.7 ) m²

$\implies{\rm }$ ( 44/7 x 7/10 ) m²

$\implies{\rm }$ ( 308/70 ) m²

$\implies{\rm }$ 4.4 m²

Hence, the lateral surface area of the right circular cylinder is 4.4 m².