A triangle is a polygon with three sides and three angles while a quadrilateral is a polygon with four sides and four angles. This allows us to understand the relationships between the sum of the angles of a triangle and quadrilateral.

A kite is a four-sided shape that consists of two pairs of congruent sides with diagonals that always intersect at 90-degree angles. The width and length of a kite need to be known to find the area of a kite.

The binomial expansion describes the steps of the algebraic expansion of powers of a binomial.

The determinant of linear algebra is a value associated with a square matrix, in this lesson it is the 2X2 matrix.

The determinant in linear algebra is a value associated with a square matrix, and in this lesson deals with the 3X3 matrix.