A rectangular sheet of paper of length 10π cm and width 5 cm is rolled along its length (width of the sheet becomes the height of the cylinder) to form a cylinder. What would be the radius of the cylinder?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 5 cm.
Length of the sheet = circumference of the cylinder = 10π
Circumference = 2πr
So, 2πr = 10π
r = 5 cm