find the volume of the cylinder which form by rolling a rectangular pi

1.	find the volume of the cylinder which form by rolling a rectangular piece of paper along its length,if length of paper 76 cm and width is 30 cm.
Answer» Length will be equal to the circumstance of baseand width will be equal to height of cylinder. So, circumference =2πr76cm=2(22/7)rr=12.1cm Height=30cm Volume of cylinder=πr²h=(22/7)(12.1)²(30)=13798.8cm³

find the volume of the cylinder which form by rolling a rectangular piece of paper along its length,if length of paper 76 cm and width is 30 cm.

Answer»

Length will be equal to the circumstance of baseand width will be equal to height of cylinder.

So, circumference =2πr76cm=2(22/7)rr=12.1cm

Height=30cm

Volume of cylinder=πr²h=(22/7)(12.1)²(30)=13798.8cm³