## Height of a Tetrahedron – Formula and Examples

The regular tetrahedron is one of the five Platonic solids. We can think of a tetrahedron as a regular triangular … Read more

## Elements of the Platonic Solids

The most important elements of the Platonic solids are the faces, the vertices and the edges. In addition, we also … Read more

## The 5 Platonic Solids – Properties, Diagrams and Examples

Platonic solids are three-dimensional figures, in which all their faces are congruent regular polygons. In total, there are five Platonic … Read more

## Circumcenter, Orthocenter, Incenter, and Centroid

The circumcenter, the orthocenter, the incenter, and the centroid are points that represent the intersections of different internal segments of … Read more

## How to find the centroid of a triangle? – Step by step

The centroid of a triangle can be found using an algebraic method or using a graphical method. To find the … Read more

## How to find the incenter of a triangle? – Step by step

The incenter of a triangle can be found by sketching the angle bisectors of the triangle and finding their point … Read more

## How to find the orthocenter of a triangle? – Step by step

The orthocenter of a triangle can be found using two main methods. We can sketch the heights of the triangle … Read more

## How to find the circumcenter of a triangle? – Step by step

The circumcenter of a triangle can be found using five different methods. Three methods consist in using different algebraic and … Read more

## Cross-Sections of a Sphere

The cross-sections of a sphere are two-dimensional figures formed by the intersection of a plane with a sphere. Since the … Read more

## All the Cross-Sections of a Rectangular Prism

The cross-sections of a rectangular prism are the two-dimensional figures that are obtained when we cut a prism with a … Read more