## Angle Between Two Lines – Formula and Examples

The angle between two lines allows us to determine the inclination that exists between the lines. We can calculate the … Read more

## Distance of a Point from a Line – Formulas and Examples

The distance from a point to a line is the shortest distance that can join the straight line with that … Read more

## Equation of a Line in Slope-Intercept Form with Examples

The slope-intercept form of a line is one of the most commonly used forms to find the equation of a … Read more

## Area of a Circular Sector – Formulas and Examples

The area of a circular sector represents the amount of space occupied by the sector. We can calculate the area … Read more

## Area of a Circle with Circumference – Formulas and Examples

The circumference is the length of the outline of a circle, while the area of the circle is a measure … Read more

## Area of a Circle with Diameter – Formulas and Examples

The diameter of a circle is the line segment that joins two points on the circumference and passes through the … Read more

## Height of an Equilateral Triangle – Formulas and Examples

The height of an equilateral triangle is the line segment that joins the vertex with its opposite side. The height … Read more

## Faces, Edges and Vertices of an Icosahedron

Icosahedrons are one of the five Platonic solids. These three-dimensional figures are formed by 20 triangular faces. In total, an … Read more

## Surface Area of an Icosahedron – Formulas and Examples

An icosahedron is one of the five Platonic solids. Icosahedrons are regular figures, so all their faces have the same … Read more

## Volume of an Icosahedron – Formulas and Examples

The icosahedron is one of the five platonic solids. This figure is formed by twenty congruent triangular faces. That is, … Read more