Find the density of a 40 gram pyramid with rectangular base 5 x 6 cm and height 8 cm.
2 answers:
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
Density is <u>mass</u>
volume
With those dimensions, the volume of the pyramid is;
V = lw(h/3)
V = (5)(6)(8/3)
V = 80 cm^3
D = <u> 40 g </u> = 1 g/cm^3
80 cm^3
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