Question

A 25cm × 25cm sheet is folded in the form of cylinder. What is the curved surface area of

the resultant cylinder?​

Answer 1

Answer:

HeRe is UR AnsWeR:

The volume of a cylinder is equal to the area of the circular base times the height:

V=(A)(H)

or

V=(πR2)(H) ————- equation 1

The height of the cylinder will be the length of the long side of your paper, so H=25cm . Now we need the radius of the circular base.

The width of the paper will equal the circumference of the circle which forms the base of the cylinder. Use this to determine the radius of the circle:

Circumference = 2πR

∴ 14cm=2πR

or

R=142π=7π cm.

Plug this into equation 1 (above):

V=π(7π)2(25)=(49)(25)π=389.9 cm3

STudY WeLL...

Answer 2

Answer:

idk

Step-by-step explanation: