Question

What is holly cylinder? what is the C.S.A. of holly cylinder?​

Answer 1

❣︎✰ᗩᑎՏᗯᗴᖇ✰❣︎

A hollow cylinder is one which is empty from inside and has some difference between the internal and external radius. Examples of a hollow cylinder: tubes, circular buildings, straws, etc.

A hollow cylinder is made up of two thin sheets of rectangle having a length and breadth. Also, the radius of both the cylinders can be r1+r2. Therefore, the surface area of the cylinder is equal to the surface area of both the rectangles which is equal to 2π( r1 + r2)( r1 – r2 +h). 3.

Hᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜʜ...✌️✌️

Answer 2

Answer:

A hollow cylinder is made up of two thin sheets of rectangle having a length and breadth. Also, the radius of both the cylinders can be r1+r2. Therefore, the surface area of the cylinder is equal to the surface area of both the rectangles which is equal to 2π( r1 + r2)( r1 – r2 +h). 3.

Step-by-step explanation: