If a miniature model of the pyramid is 3 inches wide. The volume of the model is 4.5.
Volume of the model
Pyramids square bases are twice as wide as they are tall
Model of pyramid=3 inches wide
First step is to find the model height
Let Model height=x
2 × height=weight
2x=3
x=3/2
x=1.5
Second step is to calculate the volume of model:
Volume of model=3×3×1.5×1/3
Volume of model=4.5
Therefore the volume of the model is 4.5.
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