A cylinder has a diameter of 3.0 cm and a height of 12.0 cm. Calculate its volume. (Vcylinder = pi x r2 x h)

Question

A cylinder has a diameter of 3.0 cm and a height of 12.0 cm. Calculate its volume.

(Vcylinder = pi x r2x h)

Answer 1

Volume = pi(r)^2h

diameter = 2r = 3 cm

r= 3/2 cm = radius

h=12 cm= height

V= pi(3/2)^2 x 12

= (9/4)12pi

=27pi cm^3

Volume is the area of the circular top or bottom times the height

area of the top is 9pi/4

volume is 27 pi cubic centimeters

pi= about 3.14159

27pi = about 84.82293 cm³

^{Maybe round it off to 84.8 cubic centimeters}