Definition Of Octahedron

A regular polyhedron that has 8 congruent faces is called an Octahedron.

More About Odd Function

An octahedron has equilateral triangles as its faces.
An octahedron has 8 faces, 12 edges and 6 vertices.

Example of Octahedron

In the given figure, there are 8 faces and each face is an equilateral triangle
So, the figure is an octahedron.

Video Examples: Octahedron Tutorial

Solved Example on Octahedron

Ques: Which net can form an octahedron?

Choices:

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

Solution:

Step 1: An octahedron is made of eight equilateral triangles.
Step 2: The net formed by unfolding an octahedron is as shown.Step 3: Thus, figure 3 can form an octahedron.

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