## Converse of the Pythagorean Theorem – Formulas and Examples

The Pythagorean theorem is the most used in trigonometry and allows us to calculate the length of one of the … Read more

## Vertical Angles Theorem with Examples

Vertical angles are formed at the intersection of two lines. The vertical angles theorem tells us that the vertical angles … Read more

## Height of a Scalene Triangle – Formulas and Examples

The height of a triangle is the perpendicular distance from the base to the opposite vertex. We can calculate the … Read more

## Inscribed Angle Theorem – Cases and Proofs

The inscribed angle theorem indicates that when we have a central angle and an inscribed angle that intersect in the … Read more

## Inscribed Angle Theorem – Formulas and Examples

The inscribed angle theorem is one of the most important theorems in geometry. This theorem tells us that when we … Read more

## Adjacent Angles – Definition, Properties and Examples

Adjacent angles are angles that have a common vertex and a common side but do not overlap. Recall that a … Read more

## Examples and Problems with Thales’ Theorem

Thales’ theorem tells us that a triangle inscribed in a circle, where the hypotenuse corresponds to the diameter of the … Read more

## Thales’ Theorem – Explanation and Examples

Thales’ theorem tells us that the diameter of a circle always forms a right triangle when we connect it to … Read more

## 3D Pythagorean Theorem – Formula and Examples

The 3D Pythagorean theorem is an extension of the 2D Pythagorean theorem that can be used to solve problems in … Read more

## Equilateral, Isosceles and Scalene Triangles

A triangle is a three-sided polygon that has three vertices and three interior angles. The sum of the interior angles … Read more