Answer:
128/3 cubic inches
Step-by-step explanation:
The formula for pyramid volume is (1/3)lwh. Using this we can calculate that the volume of each shape is 320/3 cubic inches and 192/3 inches. When these are subtracted, it reads 128/3 cubic inches.
Answer:
The answer is 42.67 cubic inches.
Step-by-step explanation:
Both the models are in the shape of a square pyramid.
The length of the sides of the base for both the models is 8 inches.
Amy’s model is 5 inches tall and Alex’s model is 3 inches tall.
The volume is given by :
[tex]a^{2}\frac{h}{3}[/tex]
So, Amy's figure volume is :
[tex]8^{2}\times \frac{5}{3}[/tex] = 106.67 cubic inches
And Alex's figure volume is:
[tex]8^{2}\times \frac{3}{3}[/tex] = 64 cubic inches
So, the difference between volumes is = [tex]106.66-64=42.67[/tex] cubic inches.
The answer is 42.67 cubic inches.
