• #### Using Sine to Calculate the Area of a Triangle - Concept

##### Math›Precalculus›Basic Trigonometry
How to calculate the area of any triangle using two sides and an included angle.
• #### 30-60-90 Triangles - Problem 4

##### Math›Trigonometry›Pythagorean Theorem
How to find the area of an equilateral triangle given only a side length.
• #### Solving an Equation with Radicals - Problem 3

How to solve an equation with two radicals.
• #### 30-60-90 Triangles - Problem 4

##### Math›Geometry›Pythagorean Theorem
How to find the area of an equilateral triangle given only a side length.
• #### Number of Diagonals in a Polygon - Problem 1

##### Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of diagonals in a polygon when you know the number of sides.
• #### Pythagorean Theorem Proofs - Concept

##### Math›Trigonometry›Pythagorean Theorem
How to prove the Pythagorean Theorem using Algebra to show the area of the smaller square plus the area of four triangles is equal to the area of the larger square.
• #### Solving a Logarithmic Equation - Problem 3

##### Math›Algebra 2›Inverse, Exponential and Logarithmic Functions
How to solve a logarithmic equation with a single logarithm on both sides of the equal sign.
• #### Solving Equations- two variable terms - Problem 2

##### Math›Pre-Algebra›Solving Equations and Inequalities
Solving multi-step equations using the distributive property on both sides of the equation
Tags:
• #### Solving Quadratic Equations Using Square Roots - Problem 5

How to solve binomial quadratic equations by square rooting both sides of the equation
Tags:
• #### Solving Quadratic Equations Using Square Roots - Problem 4

How to solve a binomial quadratic equation by square rooting both sides
Tags:
• #### Similar Triangles in Circles and Right Triangles - Problem 2

##### Math›Geometry›Similarity
How to find missing side lengths in a right triangle with an altitude drawn from the right angle.
• #### Factoring: Special Cases Part I - Problem 2

##### Math›Algebra›Factoring
How to find the side length of a square if given its area.
• #### Solving an Equation with Radicals - Problem 2

How to solve an equation with a radical that turns into a quadratic.
• #### Solving Quadratic Equations Using Square Roots - Problem 5

##### Math›Algebra 2›Quadratic Equations and Inequalities
How to solve binomial quadratic equations by square rooting both sides of the equation
Tags:
• #### Area With the Cross Product - Problem 3

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the area of a triangle in xyz-space using vectors formed from two of its sides.
• #### Pythagorean Theorem Proofs - Concept

##### Math›Geometry›Pythagorean Theorem
How to prove the Pythagorean Theorem using Algebra to show the area of the smaller square plus the area of four triangles is equal to the area of the larger square.
• #### Solving Quadratic Equations Using Square Roots - Problem 4

##### Math›Algebra 2›Quadratic Equations and Inequalities
How to solve a binomial quadratic equation by square rooting both sides
Tags:
• #### Number of Diagonals in a Polygon - Problem 2

##### Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of sides in a polygon when you know the number of diagonals.
• #### Solving a Logarithmic Equation with Multiple Logs - Concept

##### Math›Precalculus›Exponential and Logarithmic Functions
How to solve a logarithmic equation by condensing one, or both, sides.
• #### Solving Exponential Equations with the Different Bases - Problem 7

##### Math›Precalculus›Exponential and Logarithmic Functions
Solving for x when it is in an exponent by either rewriting the equation with a natural log or taking the natural log of both sides.