• #### Inverse Trigonometric Functions - Problem 1

##### Math›Geometry›Basic Trigonometry
How to use inverse trig functions to find angles in right triangles.
• #### Inverse Trigonometric Functions - Problem 1

##### Math›Precalculus›Basic Trigonometry
How to use inverse trig functions to find angles in right triangles.
• #### Inverse Trigonometric Functions - Problem 1

##### Math›Trigonometry›Basic Trigonometry
How to use inverse trig functions to find angles in right triangles.
• #### Using the Pythagorean Theorem to find a Missing Hypotenuse - Concept

##### Math›Geometry›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 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 - Problem 1

##### Math›Geometry›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 2

##### Math›Geometry›Pythagorean Theorem
How to use the Pythagorean Theorem to determine if a triangle is acute, right, or obtuse, given the lengths of the triangle.
• #### Converse of the Pythagorean Theorem - Problem 2

##### Math›Geometry›Pythagorean Theorem
How to use the Pythagorean Theorem to determine if a triangle is acute, right, or obtuse, given the lengths of the triangle.
• #### 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.
• #### Constructing Altitudes - Concept

##### Math›Geometry›Constructions
How to define an altitude and draw them on acute, right, and obtuse triangles.
• #### Pythagorean Theorem Proofs - Problem 1

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

##### Math›Geometry›Constructions
How to construct an altitude in an acute triangle.
• #### Constructing Altitudes - Problem 2

##### Math›Geometry›Constructions
How to construct an altitude in an obtuse triangle.
• #### Area of a Segment - Problem 1

##### Math›Geometry›Area
How to find the area of a segment, given a leg in a right triangle.
• #### Trigonometric Ratios: Tangent - Problem 3

##### Math›Geometry›Basic Trigonometry
How to find the height of an isosceles triangle using tangent ratios.