• #### Perimeter - Concept

##### Math›Geometry›Geometry Building Blocks
How to define perimeter and calculate it for squares, rectangles, and circles.
• #### Introduction to Radicals - Problem 1

How to simplify a simple square root statement.
• #### The Circle - Problem 3

##### Math›Algebra 2›Conic Sections
How to find the center and radius of a circle by completing the square.
• #### Introduction to Radicals - Concept

How to know when to include a plus and minus on a square root problem.
• #### The Circle - Problem 3

##### Math›Precalculus›Conic Sections
How to find the center and radius of a circle by completing the square.
• #### Introduction to Radicals - Problem 2

How to simplify a square root statement with multiple components.
• #### Multiplying Polynomials: Special Cases - Problem 1

##### Math›Algebra›Polynomials
How to recognize a perfect square trinomial.
• #### Review of the Methods of Factoring - Problem 3

##### Math›Algebra 2›Factoring
How to factor a perfect square trinomial.
• #### The Circle - Problem 3

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to find the center and radius of a circle by completing the square.
• #### Radicals and Absolute Values - Concept

How to know when to include a absolute value when simplifying a square root.
• #### Pythagorean Theorem Proofs - Problem 1

##### Math›Trigonometry›Pythagorean Theorem
How to prove the Pythagorean Theorem by rearranging triangles inside a square.
• #### Pythagorean Theorem Proofs - Problem 1

##### Math›Geometry›Pythagorean Theorem
How to prove the Pythagorean Theorem by rearranging triangles inside a square.
• #### 2x2 Determinants - Concept

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the determinant of a 2x2 square matrix.
• #### Radicals and Absolute Values - Problem 1

How to simplify a square root using absolute values.
• #### Solving Quadratic Equations in Disguise - Problem 3

##### Math›Algebra 2›Quadratic Equations and Inequalities
How to solve a difference of two squares by substitution.
• #### Multiplying Polynomials: Special Cases - Problem 5

##### Math›Algebra›Polynomials
Examples of squared binomials and perfect square trinomials using FOIL to multiply a binomial by itself
• #### Factoring: Special Cases Part I - Problem 5

##### Math›Algebra›Factoring
Examples of factoring perfect square trinomials.