Question

a. circular cylinder has a curved surface area 1320 cm square and the radius of its base is 10.5 cm . find the height and volume of the cylinder.​

Answer 1

Answer:

curved surface area of a circular cylinder is

2πr.h. (where h is height and r is radius of the cylinder)

2×22/7×10.5×h=1320

66h=1320

h=1320/66=20

so,height of the cylinder is 20cm

volume of the cylinder is πr^2.h

=22/7×10.5×10.5×20 cu cm

=6930cu cm