AnswersMath 7 B M12 2526 S2Cross Sections

Surface Area of Prisms Answers

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The figure below is the two-dimensional net of a rectangular prism. What is the surface area of the prism it can be folded to form?

Question illustration
A
8 square units
B
20 square units
C
24 square units
D
28 square units
2
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Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select three options.

A
6 feet by 2 feet by 3 feet
B
6 feet by 5 feet by 4 feet
C
7 feet by 6 feet by 4 feet
D
8 feet by 3 feet by 7 feet
E
8 feet by 4 feet by 3 feet
3

What is the surface area of the prism? [Not drawn to scale]

Question illustration
A
18 m2
B
24 m2
C
52 m2
D
64 m2
4

Jackie is wrapping a birthday present. The gift box is in the shape of a rectangular prism. It has a length of 8 inches, a width of 10 inches, and a height of 3 inches. What is the minimum amount of wrapping paper she will need to completely cover the box?

A
134 square inches
B
214 square inches
C
240 square inches
D
268 square inches
5

What is the surface area of the triangular prism? [Not drawn to scale]

Question illustration
A
60 square feet
B
72 square feet
C
82 square feet
D
84 square feet
6

Which could be the area of one lateral face of the triangular prism? [Not drawn to scale]

Question illustration
A
7.5 ft2
B
15 ft2
C
20 ft2
D
39 ft2
7

What is the surface area of a rectangular prism whose base is 5 inches by 6 inches and whose height is 5 inches?

A
150 square inches
B
150 cubic inches
C
170 square inches
D
170 cubic inches
8

What is the surface area of the geometric figure that can be formed by the net? [Not drawn to scale]

Question illustration
A
36 cm2
B
60 cm2
C
66 cm2
D
72 cm2
9

Which rectangular prism has a surface area of 62 square units? [Note: Art is not drawn to scale.]

A
A rectangular prism with a length of 5, width of 3, and height of 1.
Option A
B
A rectangular prism with a length of 2, width of 2, and height of 6.
Option B
C
A rectangular prism with a length of 5, width of 3, and height of 2.
Option C
D
A rectangular prism with a length of 6, width of 2, and height of 4.
Option D
10

What is the surface area of a rectangular prism that has a height of 5 cm, a width of 10 cm, and a depth of 4 cm? [Not drawn to scale]

Question illustration
A
120 square centimeters
B
180 square centimeters
C
220 square centimeters
D
270 square cemtimeters
11

If each dimension of the rectangular prism is doubled, how will its total surface area change? [Not drawn to scale]

Question illustration
A
The surface area doubles.
B
The surface area triples.
C
The surface area increases by a factor of four.
D
The surface area increases by a factor of eight.
12

Jackie is wrapping a birthday present. The gift box is in the shape of a rectangular prism. It has a length of 8 inches, a width of 10 inches, and a height of 3 inches. What is the minimum amount of wrapping paper she will need to completely cover the box?

A
134 square inches
B
214 square inches
C
240 square inches
D
268 square inches
13

Which rectangular prism has a surface area of 62 square units? [Note: Art is not drawn to scale.]

A
A rectangular prism with a length of 5, width of 3, and height of 1.
Option A
B
A rectangular prism with a length of 2, width of 2, and height of 6.
Option B
C
A rectangular prism with a length of 5, width of 3, and height of 2.
Option C
D
A rectangular prism with a length of 6, width of 2, and height of 4.
Option D
14

What is the surface area of the triangular prism? [Not drawn to scale]

Question illustration
A
54 square feet
B
67.5 square feet
C
81 square feet
D
85.5 square feet
15

Jess is building a skateboarding ramp in the shape of a triangular prism with the dimensions shown. If Jess wants to cover all faces of the ramp with plywood, how much plywood will he need? [Not drawn to scale]

Question illustration
A
96 square feet
B
144 square feet
C
156 square feet
D
168 square feet
16

Which equation can be used to calculate the surface area of the triangular prism net show below? [Not drawn to scale]

Question illustration
A
Surface Area = (one-half) (5) (12) + (5) (10) + (12) (10) + (13) (10)
Option A
B
Surface Area = (one-half) (5) (13) + (one-half) (5) (13) + (13) (10) + (12) (10)
Option B
C
Surface Area = (2) (5) (13) + (5) (10) + (13) (10) + (12) (10)
Option C
D
Surface Area = (one-half) (5) (12) + (one-half) (5) (12) + (5) (10) + (12) (10) + (13) (10)
Option D
17

Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select three options.

A
6 feet by 2 feet by 3 feet
B
6 feet by 5 feet by 4 feet
C
7 feet by 6 feet by 4 feet
D
8 feet by 3 feet by 7 feet
E
8 feet by 4 feet by 3 feet
18

Which rectangular prism has a surface area of 56 square units? [Note: Art is not drawn to scale.]

A
A rectangular prism with a length of 5, width of 3, and height of 1.
Option A
B
A rectangular prism with a length of 2, width of 2, and height of 6.
Option B
C
A rectangular prism with a length of 5, width of 3, and height of 2.
Option C
D
A rectangular prism with a length of 6, width of 2, and height of 4.
Option D

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