Q9 of 62 Page 22

A rectangular strip 25 cm× 7 cm is rotated about the longer side. Find the volume of the solid, thus generated.

Given,


Dimensions of rectangular srip = 25 cm × 7 cm


When it rotated about longer side :


Radius of base = 7 cm


Height of cylinder = 25 cm


∴ Volume of cylinder =


More from this chapter

All 62 →
7

The diameter of the base of a right circular cylinder is 42 cm and its height is 10 cm. Find the volume of the cylinder.

 8

Find the volume of cylinder, the diameter of whose base is 7 cm and height being 60 cm. Also, find the capacity of the cylinder in litres.

 10

A rectangular sheet of paper, 44 cm× 20 cm, is rolled along its length to form a cylinder. Find the volume of the cylinder so formed.

 11

The volume and the curved surface area of cylinder are 1650 cm3 and 660 cm2 respectively. Find the radius and height of the cylinder.