How do I Figure Out How Many Vertices a Triangular Pyramid Has?

A triangular pyramid has a triangle as its base.

When looking at a pyramid, think of the vertices as the pointed parts of the pyramid. Therefore, the total number vertices on a pyramid is the number of pointed spots. A triangular pyramid is a pyramid comprised of only pyramids. Even the base of the pyramid is a triangle. If you unfolded the triangular pyramid, you will notice there are four triangles in all that compose the pyramid--one triangle at the base and three triangles around the base.

Instructions

1. Draw out the pyramid. Be sure there are four different triangles with one triangle acting as the base.

2. Put a check mark at any spot there is a pointed spot on the pyramid.

3. Add together all the check marks. In total, there will be four.

References

• Math Is Fun: Spinning Triangular Pyramid
• Learner: Pyramids