• #### Using a Protractor - Concept

##### Math›Geometry›Geometry Building Blocks
How to use a protractor to measure an angle.
• #### Radii to Tangents - Concept

##### Math›Geometry›Circles
How to define a tangent line; how to determine the angle a radius to a tangent forms.
• #### Constructing Altitudes - Problem 1

##### Math›Geometry›Constructions
How to construct an altitude in an acute triangle.
• #### Pythagorean Theorem - Problem 1

##### Math›Pre-Algebra›Introductory Geometry
Using the Pythagorean Theorem to find integer side lengths of right triangles
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• #### Supplementary and Complementary Angles - Concept

##### Math›Geometry›Geometry Building Blocks
How to identify supplementary and complementary angles.
• #### The Tangent Function - Concept

##### Math›Precalculus›Trigonometric Functions
How to define the tangent function for all angles.
• #### The Tangent Function - Concept

##### Math›Trigonometry›Trigonometric Functions
How to define the tangent function for all angles.
• #### HL - Problem 1

##### Math›Geometry›Triangles
How to use the hypotenuse-leg (HL) shortcut to determine the congruence of vertical triangles and how to correctly denote the congruence.
• #### Constructing Altitudes - Problem 2

##### Math›Geometry›Constructions
How to construct an altitude in an obtuse triangle.
• #### Volume of Prisms - Concept

##### Math›Geometry›Volume
How to find the volume of any prism, right or oblique using a general formula.
• #### Area of a Segment - Problem 1

##### Math›Geometry›Area
How to find the area of a segment, given a leg in a right triangle.
• #### The Definite Integral - Concept

##### Math›Calculus›The Definite Integral
How to define the definite integral.
• #### Pythagorean Theorem - Problem 2

##### Math›Pre-Algebra›Introductory Geometry
Using the Pythagorean Theorem to find decimal approximations for missing side lengths in a right triangle
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• #### Pythagorean Theorem - Problem 3

##### Math›Pre-Algebra›Introductory Geometry
Using the Converse of the Pythagorean Theorem to determine whether or not three sides would create a right triangle
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• #### Parallel and Perpendicular Lines - Concept

##### Math›Algebra›Linear Equations and Their Graphs
How to determine whether lines are parallel, perpendicular, or neither.
• #### Radii to Tangents - Problem 1

##### Math›Geometry›Circles
How to calculate the central angle formed by radii to tangents that intersect at a point outside the circle.
• #### Area of Triangles - Problem 1

##### Math›Geometry›Area
How to find the height of a triangle, given the three sides of a right triangle, using the area of a triangle formula.
• #### Types of Triangles - Concept

##### Math›Geometry›Geometry Building Blocks
How to classify a triangle based on its side lengths and angle measures.
• #### 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.
• #### Solving Two-step Equations - Problem 5

##### Math›Algebra›Solving Equations
Solving equations where the variable is on the right hand side of the equals sign
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