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28 July, 23:12

A rectangular pyramid fits exactly on top of a rectangular prism. The prism has length 15 cm, width 5 cm, and height 7 cm, and the pyramid has height 13 cm. Find the volume of the composite space figure.

A) 1500 cm3

B) 500 cm3

C) 2275 cm3

D) 850 cm3

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Answers (1)
  1. 29 July, 00:42
    0
    Volume of figure = volume of prism + volume of pyramid

    Volume of figure = l x b x h + 1/3 x l x b x h

    Volume of figure = 15 x 5 x 7 + 1/3 x 15 x 5 x 13

    Volume of figure = 525 + 325 = 850 cm^3
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