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Cubes/Rectangular Prisms
CONCEPTS
Rectangular Prism Properties
• Surface Area = 6 * l * w (l = length, w = width)
• Volume = l * w * h (l = length, w = width, h = height)
PRACTICE PROBLEMS
Question 1 Given leg lengths of 2, 5, & 8 for a rectangular prism. How the does volume change if the legs each increase by 20%?
-- Answer -- 148
2 * 1.2 * 5 * 1.2 * 8 * 1.5 vs 2 * 5 * 8
V = 120, 3A = 148
Question 2 Given a volume of 16 for a cube, what is the surface area?
-- Answer -- 6 * 16^2/3
6 * 16^2/3
Question 3 Given the surface area of a cube = 24, what is the surface area for 1 face of the cube?
-- Answer -- 4
6 surfaces on a cube -> 24 / 6 = 4
ACT PRACTICE PROBLEMS
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