June 26, 2019

**Prisms** are polyhedra that have two parallel, equally sized faces called **bases** and their **lateral faces** are parallelograms.

The **height** of a prism is the distance between the bases.

The **lateral edges** of a prism are equally sized parallel edges.

## Unfold of a Prism

## Types of Prisms

### Regular Prisms

The bases of the regular prisms are regular polygons.

### Irregular Prisms

The bases of the irregular prisms are irregular polygons.

### Right Prisms

The lateral faces of the right prisms are rectangles or squares.

### Oblique Prisms

The lateral faces of the oblique prisms are rhomboids or rhombi.

### Parallelepipeds

The bases of parallelepiped prisms are parallelograms.

### Cuboid

The faces of **cuboids** are rectangular faces.

## Types of Prisms by Their Base

### Triangular Prism

The bases are triangles.

### Square Prism

The bases are squares.

### Pentagonal Prism

The bases are pentagons.

### Hexagonal Prism

The bases are hexagons.

### Lateral Area of a Prism

### Surface Area of a Prism

### Volume of a Prism

Calculate the height of a prism whose base has an area of 12 dm² and whose capacity is 48 liters.

Calculate the lateral area, surface area and volume of a prism whose base is a rhombus with diagonals of 12 and 18 cm.