Volume and Surface Area Problems — Unit test Answers
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Graham joined two congruent square pyramids to form the composite solid. [Not drawn to scale]If the lateral faces of the pyramids each have an area of 18.4 cm2, what is the total surface area of the composite solid?
A
73.6 cm2B
110.4 cm2C
147.2 cm2D
158.2 cm222
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What does volume measure?
A
the amount of space occupied by a two-dimensional solid objectB
the total area of all the surfaces of a three-dimensional solid objectC
the amount of space inside the boundary of a two-dimensional objectD
the amount of space occupied by a three-dimensional solid object23
What is the surface area of the shaded front face of the composite solid?
A
16 square centimetersB
18 square centimetersC
26 square centimetersD
32 square centimeters24
Which could be the area of the base of the triangular prism? [Not drawn to scale]
A
6 ft2B
10 ft2C
12 ft2D
20 ft225
Which expression represents the total surface area, in square meters, of the rectangular pyramid below?
A
(18.4) (27.6) + 2 ((18.4) (20.4)) + 2 ((27.6) (17.6))
B
(18.4) (27.6) + 2 ((18.4) (22.4)) + 2 ((27.6) (22.4))
C
(18.4) (27.6) + 2 (one-half (18.4) (20.4)) + 2 (one-half (27.6) (17.6))
D
(18.4) (27.6) + 2 (one-half (18.4) (22.4)) + 2 (one-half (27.6) (22.4))
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