Math, asked by sonasanu2933, 5 months ago

A rectangle sheet of paper of 66 cm long and 20 cm broad is rolled along its length into a cylinder. Find it's CSA ?

Answers

Answered by brokenheartbadboy618

1

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Length of the sheet=Circumference of the base.

⇒44=2πr

⇒r=44×

2

1

×

22

7

=7

∴ Radius=7cm

Breadth of the metal sheet=height of the cylinder

h=20cm

Curved surface area=2πrh

=2×

7

22

×7×20=880sq.cm

Step-by-step explanation:

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