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# 10 Examples of Pyramids

October 7, 2023
written by Rida Mirza

Pyramids are cool 3D shapes. They start with a flat shape at the bottom, like a square or triangle. Then, they have sides that slant and come together to a point at the top. This pointy top is called the apex.

In this article, we will discuss ten examples of pyramids in mathematics.

## Examples of Pyramids

These are 10 examples of pyramids.

### 1: Square Pyramid

Square pyramid has a square base and triangular faces that converge at an apex. Its volume can be calculated using the formula V = (1/3) * base area * height.

### 2: Triangular Pyramid

Triangular pyramid has a triangular base and triangular faces that meet at an apex. Its volume is calculated similarly to a square pyramid.

### 3: Pentagonal Pyramid

Pentagonal pyramid has a pentagonal base and triangular faces. Its volume can be calculated based on the base area and height.

### 4: Hexagonal Pyramid

Hexagonal pyramid has a hexagonal base and triangular faces. Its volume can be found using the base area and height.

### 5: Regular Pyramid

Regular pyramid has a base with all sides of equal length and congruent angles. It has a unique apex and is commonly used in geometry.

### 6: Oblique Pyramid

Oblique pyramid has an irregular base, and its apex is not directly above the center of the base. It is often encountered in practical geometry problems.

### 7: Egyptian Pyramid

Egyptian pyramids, such as the Great Pyramid of Giza, are square pyramids with historical and cultural significance.

### 8: Frustum of a Pyramid

Frustum of a pyramid is the portion that remains after cutting off the top with a smaller, similar pyramid. It has unique volume and surface area formulas.

### 9: Trirectangular Tetrahedron

This pyramid is formed by cutting a cube with a plane that goes through three non-adjacent vertices. It is a unique example of a pyramid.

### 10: Pyramid Number

In number theory, a pyramid number is a figurate number that represents a pyramid with a triangular base and a given number of layers.

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