Question
The base of a prism has \( n \) sides. a. How many lateral faces does it have? b. How many faces does it have? a. The prism has \( \square \) lateral faces. (Type an expression using n as the variable.)
Ask by Ayala Montgomery. in the United States
Feb 22,2025
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Tutor-Verified Answer
Answer
a. The prism has \( n \) lateral faces.
b. The prism has \( n + 2 \) faces.
Solution
To solve the problem regarding the prism with \( n \) sides, let's break it down step by step.
### a. How many lateral faces does it have?
A prism is defined as a solid object with two parallel bases that are congruent polygons. The lateral faces of a prism are the faces that connect the corresponding sides of the two bases.
For a prism with a base that has \( n \) sides:
- Each side of the base corresponds to one lateral face.
- Therefore, the number of lateral faces is equal to the number of sides of the base.
Thus, the expression for the number of lateral faces is:
\[
\text{Lateral Faces} = n
\]
### b. How many faces does it have?
The total number of faces of a prism is the sum of the lateral faces and the two bases. Since we have already established that there are \( n \) lateral faces and 2 bases, we can express the total number of faces as follows:
\[
\text{Total Faces} = \text{Lateral Faces} + \text{Bases} = n + 2
\]
### Summary of Answers:
- a. The prism has \( n \) lateral faces.
- b. The prism has \( n + 2 \) faces.
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The Deep Dive
a. The prism has \( n \) lateral faces, as each side of the polygonal base connects to a corresponding side on the top base, forming a vertical face. b. The prism has \( n + 2 \) faces in total, which includes the \( n \) lateral faces plus the two bases. So, you can think of it as always adding two bases to whatever number of sides your base contains!