Political Science, asked by lovelyupadhye4463, 11 months ago

A rectangualr paper is 22 cm length and 10 cm width it is rolled into cylinder find its surface area

Answers

Answered by palkin
0

surface area of cylinder = area of rectangle

Area of rectangle = length × breadth

22 cm × 10 cm = 220 cm²

Or

let the length of rectangle be height of cylinder and breadth be circumference.

curved surface of cylinder = 2πrh

[circumference of circle = 2πr = 10cm]

curved surface area = 10×22 =220 cm²

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