Physical Science

Chapter 22: Solutions

Calculate Surface Area

1.
The length, height, and width of a cube are each 1 cm. If the cube is cut in fourths to form four rectangles, what is the total surface area of the new pieces?
A)2.5 cm2
B)1.3 cm2
C)3.3 cm2
D)4.0 cm2
2.
The length, height, and width of a cube are each 2 cm. If the cube is cut in halves to form two rectangles, what is the total surface area of the new pieces?
A)6.5 cm2
B)8 cm2
C)10 cm2
D)9.5 cm2
3.
A cube of salt with a length, height, and width of 4 cm is attached along a face to another cube of salt with the same dimensions. What is the combined surface are of the new rectangular solid?
A)160 cm2
B)145 cm2
C)180 cmp2
D)198 cm2
4.
A cube of salt with a length, height, and width of 3 cm is attached along a face to another cube of salt with the same dimensions. What is the combined surface are of the new rectangular solid?
A)100 cm2
B)82 cm2
C)95 cm2
D)90 cm2
5.
A cube of salt with a length, height, and width of 4 cm is attached end-to-end with two cubes of salt with the same dimensions. What is the combined surface are of the new rectangular solid?
A)200 cm2
B)224 cm2
C)250 cm2
D)255 cm2
6.
A cube of salt with a length, height, and width of 5 cm is attached end-to-end with two cubes of salt with the same dimensions. What is the combined surface are of the new rectangular solid?
A)340 cm2
B)350 cm2
C)365 cm2
D)399 cm2
7.
A cube of salt with a length, height, and width of 4 cm is attached along a face to another cube of salt with the same dimensions. How much surface area has been lost?
A)8 cm2
B)12 cm2
C)16 cm2
D)14 cm2
8.
A cube of salt with a length, height, and width of 3 cm is attached along a face to another cube of salt with the same dimensions. How much surface area has been lost?
A)9 cm2
B)11 cm2
C)12 cm2
D)22 cm2
9.
A cube of salt with a length, height, and width of 4 cm is attached end-to-end with two cubes of salt with the same dimensions. How much surface area has been lost?
A)8 cm2
B)15 cm2
C)22 cm2
D)32 cm2
10.
A cube of salt with a length, height, and width of 5 cm is attached end-to-end with two cubes of salt with the same dimensions. How much surface area has been lost?
A)18 cm2
B)35 cm2
C)54 cm2
D)82 cm2
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