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RIGHT PRISM

Right Prism

Definition Of Right Prism

Right Prism is a prism that has two bases, one directly above the other, and that has its lateral faces as rectangles.

More about Right Prism

In a right prism, the edges of the lateral faces are perpendicular to the bases.

Examples of Right Prism

Video Examples: Right Triangular Prism

Solved Example on Right Prism

Ques: Which of the following figures is a right prism?

Solved Example on Right Prism

Choices:

A. Figure 1
B. Figure 2
C. Figure 3
D. Figure 4
Correct Answer: B

Solution:

Step 1: Right Prism is a prism that has two bases, one directly above the other, and that has its lateral faces as rectangles.
Step 2: Here, Figure 1, Figure 3, and Figure 4 are oblique figures and only Figure 2 is a right prism.
Step 3: So, Figure 2 is a right prism.

Quick Summary

  • Right prisms have rectangular lateral faces.
  • The edges of lateral faces are perpendicular to the bases.
  • The volume of a right prism is the area of the base multiplied by the height.
\[ V = Bh, where V is volume, B is the base area, and h is the height (distance between bases). \]

🍎 Teacher Insights

Use physical models to demonstrate the properties of right prisms. Emphasize the perpendicularity between the lateral edges and the bases. Provide various examples of bases to calculate areas and volumes.

🎓 Prerequisites

  • Prisms
  • Rectangles
  • Area
  • Volume
  • Perpendicularity

Check Your Knowledge

Q1: Which of the following is NOT a characteristic of a right prism?

Q2: The base of a right prism is a square with a side of 5 cm, and the height of the prism is 10 cm. What is the volume of the prism?

Frequently Asked Questions

Q: What is the difference between a right prism and an oblique prism?
A: In a right prism, the lateral faces are rectangles and perpendicular to the bases. In an oblique prism, the lateral faces are parallelograms, not rectangles, and are not perpendicular to the bases.

Q: How do you find the surface area of a right prism?
A: The surface area is the sum of the areas of all the faces, including the two bases and all the lateral faces.

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