Question

Take a rectangular sheet of chart paper of 30 x 15 cm. 2. Fold the sheet along length, i.c., 30 cm to obtain a cylinder. 3. Find volume of this cylinder. 4. Re-open the cylinder, now fold the sheet once again but along breadth, i.s., 15 cm to obtain a cylinder. 5. Find the volume of this cylinder also.​

Answer 1

Answer:

volume of the cylinder=2πrh

in 1case 2πr=30 h=15

so 30×15

in 2case 2πr=15 h=30

so 15×30

in both the cases the volumes are equal