Give the surface area of each right rectangular prism described below. (Suggestion: Making a rough sketch may help.)

(Fill in the blanks with numbers without commas, and without rounding.)

a. length 48 cm, width 32 cm, and height 40 cm

The surface area of part a prism iscm².

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b. height 1.4 m, depth 20 cm, and width 90 cm

The surface area of part b prism iscm²=m².

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c. length 51

2

12ft, width 4 ft, and height 3 in.

The surface area of part c prism isft²=in²

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d. length x cm, width y cm, and height z cm

Choose the best answer for the surface area in cm².

2xyz

2xyz

xyz

xyz

2xy+2xz+2yz

2xy+2xz+2yz

4(x+y+z)

4(x+y+z)