**What is a Pyramid?**

A Pyramid is defined as a three-dimensional structure encompassing a polygon as its base.

Every corner of a pyramid is linked to a single apex which makes it appearance as a distinct shape. The edge of each base and its top makes a triangle.

**Types of Pyramid**

There are different types of pyramids that are named based on the shapes of their bases.

**Triangular Pyramid –**The base of this pyramid has a shape of a triangle, therefore we call it as a triangular pyramid.

**2. Square Pyramid –** The base of this pyramid has a shape of a square, therefore we call it as a Square Pyramid.

**3. Pentagonal Pyramid – **The base of this Pyramid has a shape of a Pentagon, therefore we call it as a Pentagonal Pyramid.

**4. Right pyramid – **This apex of this pyramid is exactly over the middle of the base, hence named as Right Pyramid.

**5. Oblique pyramid – **The apex of this pyramid is not exactly over the middle of its base and named as Oblique Pyramid.

**Regular vs Irregular Pyramid**

To distinguish between regular and irregular Pyramid, you need to consider the shape of the base. If the base of a polygon is regular, its labeled as Regular Pyramid, else it is considered as Irregular Pyramid. ** **

**Regular Pyramid ** **Base is Regular** **IrregularPyramid****Base is Irregular**

**Pyramid Formulas**

To find out the surface area and some formulas can be used. The surface area of a pyramid is the total area of all the surfaces that pyramid has. Formulas to find out the surface area of a pyramid.

**S A = (base area) + (1/2) * (perimeter) * (slant height)**

The base area is the area of the base of a pyramid that can be calculated on the basis of figure type. To calculate the triangular pyramid volume, the formula to compute it is given by:

**Volume = 1/ 3 x [Base Area] x height**

You can visit a separate page for volume of the pyramid, that provides all the surface and volume formulas along with solved examples.

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