The total amount of volume inside the parking garage which has a tented area with a slanted roof is 20000 ft³.
Volume of triangular prism is the amount of quantity, which is obtained in it in the 3 dimensional space. The volume of a triangular prism is base area (B) times height of it.
[tex]V=B\times h[/tex]
The volume of a rectangular prism is the product of its width, height and length.
[tex]V=w\times h\times l[/tex]
Here, (w) is the width of the base (l) is the length and (h) is the height of the rectangular prism.
A rectangular prism and a triangular prism. The rectangular prism has a length of 40 feet, width of 15 feet, and height of 20 feet. The volume of this prism is,
[tex]V=20\times15\times40\\V=12000\rm\;ft^3[/tex]
The triangular prism has a triangular base, with base 20 feet and height 20 feet. The prism has a height of 40 feet. The volume of this prism is,
[tex]V=\dfrac{20\times20}{2}\times40\\V=8000\rm\;ft^3[/tex]
Total volume of the parking area is,
[tex]V=12000+8000\\V=20000\rm\; ft^3[/tex]
Thus, the total amount of volume inside the parking garage which has a tented area with a slanted roof is 20000 ft³.
Learn more about the volume of a triangular prism here;
https://brainly.com/question/15129289
