Question

The circumference of the base of a cylinder is 180 cm and its height is 30 cm. Find its total surface area and its volume.

Answer 1

Answer:

Circumference of the base = 2πr

180 cm = 2*22/7*r

180*7/2*22 = r

28.6 = r

r = 28.6 cm

T.s.a of cylinder = 2πr(r+h)

= 2*22/7*28.6(28.6+30)cm

=5171.46cm^2 (approx)

Volume of cylinder = πr^2h

= 22/7*28.6*28.6*30cm

=77121.942 cm^3(approx)