# Blog

### Triangle Reflection – Definition, Techniques, and Examples

Mastering triangle reflection tests our understanding of transformations and reflections that occur on a rectangular coordinate plane. The triangle

### Rational Root Theorem – Explanation & Examples

Rational root theorem, also known as rational zero theorem or rational root test, states that the rational roots of a single-variable polynomial with

### Cosine Theorem – Explanation & Examples

The law of cosines or cosine theorem is a rule that provides us with the relation between the sides and angles of a triangle. The relationship is

### Inverse Function Theorem – Explanation & Examples

Inverse function theorem gives a sufficient condition for the existence of the inverse of a function around a certain point and also tells us how to

### Perimeter of a Rectangle – Explanation & Examples

Perimeter of a rectangle is the total length of all of its sides. It is calculated with the help of the following formula: \$textrm{Perimeter of a