Question

The circumference of the base of a cylinder is 44cm and it's height is 7cm. Find the volume of the cylinder and it's lateral surface area.

Answer 1

 Given: Height, h = 7 cm

Circumference of the base of the cylinder = 44 cm²

Let r be the radius of the radius of the cylinder. The circumference of the base of the cylinder = 2Πr44=2×22÷7×rr=44×7÷2×22=7cm

Curved surface area = 2×Π×r×h

= 2×22/7×7×7=308cm2

Volume = πr²h

             = 22/7×7×7×7
             = 1078 cm³

Answer 2

Hi !

Circumference of the base = 2πr = 2*22/7*r = 44

r = 44*7/44
  = 7 cm

Radius = r = 7 cm

Height = h = 7 cm

Volume = πr²h
             = 22/7*7*7*7
             = 1078 cm³

C.S.A of cylinder = 2πrh
                            =2πr * h
                            = 44*7
                            = 308 cm²

C.S.A of the cylinder is 308 cm² and volume is 1078 cm³