a lateral surface area of cylinder is 1000cm ² . it is cut along it's height amd a rectangular sheet is made. if the width of the sheet is 20cm, find the perimeter
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Answer:
Since the cylinder is cut along its height, the circumference of its base (or top)
= width of rectangular sheet i.e. 2πR=44cm
Curved Surface Area of a Cylinder =2πRh
Given 2πRh=5632h=
2πR
5632
=
44
5632
cm=128cm
The length of the sheet will be the height.
Required perimeter =2(l+b)=2(128+44)cm=344cm
Step-by-step explanation:
hope it helped
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