• Trigonometric Ratios: Tangent - Problem 1

Math›Precalculus›Basic Trigonometry
How to find the length of a side in a right triangle using the tangent ratio.
• Inverse Trigonometric Functions - Problem 2

Math›Trigonometry›Basic Trigonometry
How to use inverse trig functions to find an angle in a trapezoid.
• 45-45-90 Triangles - Problem 2

Math›Trigonometry›Pythagorean Theorem
How to find the length of a leg in a 45-45-90 given the hypotenuse.
• Trigonometric Ratios: Sine - Problem 2

Math›Geometry›Basic Trigonometry
How to find the length of a base in an isosceles triangle given the vertex angle and a leg length.
• Trigonometric Ratios: Tangent - Problem 3

Math›Geometry›Basic Trigonometry
How to find the height of an isosceles triangle using tangent ratios.
• Trigonometric Ratios: Tangent - Problem 3

Math›Precalculus›Basic Trigonometry
How to find the height of an isosceles triangle using tangent ratios.
• Trigonometric Ratios: Sine - Problem 2

Math›Precalculus›Basic Trigonometry
How to find the length of a base in an isosceles triangle given the vertex angle and a leg length.
• Converse of the Pythagorean Theorem - Concept

Math›Trigonometry›Pythagorean Theorem
How to use the converse of the Pythagorean Theorem to determine if a triangle is a right triangle, how to use Pythagorean triples to memorize the lengths of certain right triangles.
• The Tangent Function - Concept

Math›Trigonometry›Trigonometric Functions
How to define the tangent function for all angles.
• Converse of the Pythagorean Theorem - Problem 1

Math›Trigonometry›Pythagorean Theorem
How to use the converse of the Pythagorean Theorem to determine if a triangle is a right triangle given the lengths of the triangle.
• Inverse Trigonometric Functions - Problem 2

Math›Geometry›Basic Trigonometry
How to use inverse trig functions to find an angle in a trapezoid.
• Pythagorean Theorem Proofs - Problem 2

Math›Trigonometry›Pythagorean Theorem
How to use the Pythagorean Theorem to determine if a triangle is acute, right, or obtuse, given the lengths of the triangle.
• Inverse Trigonometric Functions - Problem 2

Math›Precalculus›Basic Trigonometry
How to use inverse trig functions to find an angle in a trapezoid.
• Converse of the Pythagorean Theorem - Problem 2

Math›Trigonometry›Pythagorean Theorem
How to use the Pythagorean Theorem to determine if a triangle is acute, right, or obtuse, given the lengths of the triangle.
• Using the Pythagorean Theorem to find a Missing Hypotenuse - Problem 1

Math›Trigonometry›Pythagorean Theorem
How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem.
• Using the Pythagorean Theorem to find a Missing Hypotenuse - Concept

Math›Trigonometry›Pythagorean Theorem
How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem.
• Pythagorean Theorem Proofs - Problem 1

Math›Trigonometry›Pythagorean Theorem
How to prove the Pythagorean Theorem by rearranging triangles inside a square.
• 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.
• The Tangent Function - Concept

Math›Precalculus›Trigonometric Functions
How to define the tangent function for all angles.
• The Definitions of Sine and Cosine - Concept

Math›Trigonometry›Trigonometric Functions
How we define sine and cosine for all angle measures using the unit circle.