• #### Distance Formula - Problem 1

##### Math›Geometry›Pythagorean Theorem
How to find the distance between two points on the coordinate plane using the distance formula.
• #### Distance Formula - Problem 1

##### Math›Trigonometry›Pythagorean Theorem
How to find the distance between two points on the coordinate plane using the distance formula.
• #### Distance Formula - Problem 2

##### Math›Geometry›Pythagorean Theorem
How to identify a polygon (a triangle in this problem) as isosceles, equilateral, or scalene using the distance formula.
• #### Distance Formula - Problem 2

##### Math›Trigonometry›Pythagorean Theorem
How to identify a polygon (a triangle in this problem) as isosceles, equilateral, or scalene using the distance formula.
• #### Distance Formula - Concept

##### Math›Trigonometry›Pythagorean Theorem
How to derive the equation for the distance between two points using the Pythagorean Theorem.
• #### Distance Formula - Concept

##### Math›Geometry›Pythagorean Theorem
How to derive the equation for the distance between two points using the Pythagorean Theorem.
• #### The Distance Formula in Polar Coordinates - Problem 2

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the distance between to points given their polar coordinates.
• #### The Distance Formula in Polar Coordinates - Problem 1

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the distance between two points, (3, 7*pi/6) and (5, pi/2), given their polar coordinates.
• #### The Midpoint and Distance Formulas in 3D - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the length and midpoint of a segment in three dimensions.
• #### The Distance Formula in Polar Coordinates - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to derive the distance formula for polar coordinates.
• #### The Distance Formula in Polar Coordinates - Problem 3

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to derive the polar equation of a circle given its center and radius.
• #### The Midpoint and Distance Formulas in 3D - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to find the equation of a sphere with center (a,b,c) and radius r.
• #### The Midpoint and Distance Formulas in 3D - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions.
• #### The Midpoint and Distance Formulas in 3D - Problem 4

##### Math›Precalculus›Vectors and Parametric Equations
How to find the center and radius of a sphere when its equation is not in center-radius form by completing the square.
• #### The Midpoint and Distance Formulas in 3D - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to find the equation of the set of points equidistant from two given points.
• #### The Cosine Addition Formulas - Concept

How to derive the cosine of a difference formula.