## Alternate Interior Angles – Definition and Examples

Alternate interior angles are the angles formed when a transversal intersects two parallel or non-parallel lines. These angles are located … Read more

## Corresponding Angles – Definition and Examples

Before we start with the corresponding angles directly, we have to do a brief review of the angles, the parallel … Read more

## Complementary Angles- Definitions and Examples

Complementary angles are defined with respect to the sum of two angles. We have a pair of complementary angles when … Read more

## Supplementary Angles- Definition and Examples

Supplementary angles are a pair of angles, which when added measure 180 degrees. For example, the angles 140° and 40° … Read more

## Parts of a Circle with Diagrams

A circle is a curve in the plane that consists of all points that have the same distance from a … Read more

## Radius of a Circle – Formulas and Examples

The radius of a circle is equal to the distance from the center of the circle to any point on … Read more

## Circumference of a Circle – Formulas and Examples

The circumference of a circle defines the length of the contour of the circle. The circumference is also referred to … Read more

## Area of a Circle – Formulas and Examples

The area of a circle is the region occupied by the circle in the two-dimensional plane. We can easily determine … Read more

## What are the characteristics of an octagon?

Octagons are polygons that have eight sides and eight interior angles. The total sum of the interior angles in an … Read more

## Apothem of an Octagon – Formulas and Examples

The apothem of any polygon is equal to the line that connects the center of the polygon with one of … Read more