a A rectangular paper of dimension 22 cm x 8 cm is formed into a hollow cylinder by rolling it along its length. Find the radius of the cylinder so formed.
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Answer:
The paper is rolled along the length
⇒ the breadth of the paper is the circumference
Find the radius
Circumference = 2πr
8 = 2πr
r = 8 ÷ 2π
r = 14/11 or 1.27 cm
Step-by-step explanation:
Answered by
4
Answer:
perimeter of circle = 22 cm
radius= 3.5 cm
Step-by-step explanation:
¹st a cylinder by rolling rectangular paper along its length and cylinder has two circle upward and downward so, perimeter of circle=22 cm.
²nd radius of circle= perimeter/2π
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