Answer:
Yeah I can’t see nothing can u please zoom in I will answer it
Step-by-step explanation:
Depends on what kind you are gonna buy
Answer:
d. ![8\text{ ft}^3](https://tex.z-dn.net/?f=8%5Ctext%7B%20ft%7D%5E3)
Step-by-step explanation:
We have been given that Cheng measures each edge of each base to be 2 feet. The height of the whole sculpture is 6 feet.
First of all, we will find height of each pyramid by dividing height of whole sculpture by 4 as:
![\frac{6\text{ ft}}{4}=1.5\text{ ft}](https://tex.z-dn.net/?f=%5Cfrac%7B6%5Ctext%7B%20ft%7D%7D%7B4%7D%3D1.5%5Ctext%7B%20ft%7D)
We know that volume of a pyramid is equal to 1/3 of base area times height that is
, where b represents area of base.
![V=\frac{(2\text{ ft})^2\times\text{ 1.5 ft}}{3}=4\times 0.5\text{ ft}^3=2\text{ ft}^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B%282%5Ctext%7B%20ft%7D%29%5E2%5Ctimes%5Ctext%7B%201.5%20ft%7D%7D%7B3%7D%3D4%5Ctimes%200.5%5Ctext%7B%20ft%7D%5E3%3D2%5Ctext%7B%20ft%7D%5E3)
Since volume of one pyramid is equal to 2 cubic feet, so volume of 4 pyramids will be 4 times 2 cubic feet that is 8 cubic feet.
Therefore, Cheng must purchase 8 cubic feet of material.
Answer:......................................
Peter.