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12 February, 19:40

Find the volume of a rectangular prism whose dimensions are twice those of another rectangular prism that has a volume of 120 cm3.

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  1. 12 February, 20:14
    0
    The volume of a rectangular prism:

    V = W x L x H = 120 cm³

    V 1 = 2 W x 2 L x 2 H =

    = 8 · (W x L x H) = 8 V = 8 · 120 = 960 cm³

    Answer:

    The volume of the larger prism is 960 cm³.
  2. 12 February, 21:23
    0
    Let the other rectangular prism have dimensions x, y, z V = xyz = 120 (from the "other" rectangle)

    so volume of new rectangle = (2x) (2y) (2z) = 8 (xyz)
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