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8 February, 06:22

Find the density of a 40 gram pyramid with rectangular base 5 x 6 cm and height 8 cm.

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Answers (2)
  1. 8 February, 07:49
    0
    Density is mass/volume or g/cm^3 in this case

    vpyramid = (1/3) lwh

    given

    l=6

    w=5

    h=8

    V = (1/3) 6*5*8

    V=2*40

    V=80cm^3

    mass=40g

    density=40g/80cm^3=0.5g/cm^3

    0.5 grams per cm^3 is the density
  2. 8 February, 09:46
    0
    Density is mass

    volume

    With those dimensions, the volume of the pyramid is;

    V = lw (h/3)

    V = (5) (6) (8/3)

    V = 80 cm^3

    D = 40 g = 1 g/cm^3

    80 cm^3
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