MathChapter 20: Surface Areas and Volumes
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Card 1 of 20. Answer hidden.
Prompt
What defines the two bases of a prism?
Answer
They are congruent, parallel polygonal faces.
Prompt
What is prism height?
Answer
The perpendicular distance between the two base planes.
Prompt
What is the volume formula for a prism?
Answer
\(V=Bh\), where B is base area.
Prompt
What is the lateral-area formula for a right prism?
Answer
\(LA=Ph\), where P is base perimeter.
Prompt
What is total surface area for a closed right prism?
Answer
\(TA=Ph+2B\).
Prompt
What is cube volume?
Answer
\(V=s^3\).
Prompt
What is cube surface area?
Answer
\(SA=6s^2\).
Prompt
Which prism input uses perimeter: volume or lateral area?
Answer
Lateral area uses perimeter; volume uses base area.
Prompt
Why can triangle altitude differ from prism height?
Answer
Triangle altitude lies in the base face; prism height runs between the congruent bases.
Prompt
What units belong on prism volume?
Answer
Cubic units, such as cm³.
Prompt
What units belong on prism surface area?
Answer
Square units, such as cm².
Prompt
How is a hole through a block handled for volume?
Answer
Subtract the hole's full three-dimensional volume from the outer volume.
Prompt
How do you find mass from density and volume?
Answer
\(m=DV\), after matching volume units.
Prompt
If 1 ft = 12 in, how many cubic inches are in 1 ft³?
Answer
\(12^3=1728\) cubic inches.
Prompt
For an open-top box cut by x, what is the box height?
Answer
x, the side length of each removed corner square.
Prompt
Why do open-top base dimensions use L−2x and W−2x?
Answer
A cut of width x is removed from both ends of each dimension.
Prompt
A cube has volume 512. What is its positive edge?
Answer
8, because \(8^3=512\).
Prompt
How is water depth found in a rectangular tank?
Answer
Divide water volume by tank base area.
Prompt
A prism has B=18 and h=7. What is its volume?
Answer
126 cubic units.
Prompt
What is the best first step in a prism problem?
Answer
Choose and identify the base shape before selecting B, P, and h.
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