Chapter 12, Lesson 7


12-7.A find volumes of cylinders
The diameter of the base of a cylinder is 8 inches and the height of the cylinder is 1.5 feet. Find the volume of the cylinder, to the nearest tenth of a cubic inch.

12-7.B find volumes of cones
The radius of the base of a cone is 0.5 meter and the height of the cone is 75 centimeters. Find the volume of the cone, to the nearest tenth of a cubic meter.

12-7.C recognize numbers that are perfect cubes
Which of these numbers is not a perfect cube?
(a)
0 (b) 1 (c) 162 (d) 243