• #### Angle Bisectors - Concept

##### Math›Geometry›Geometry Building Blocks
How to label an angle bisector; how to use an angle bisector to find a missing variable.
• #### Constructing an Angle Bisector - Concept

##### Math›Geometry›Constructions
How to define and construct an angle bisector.
• #### Constructing an Angle Bisector - Problem 1

##### Math›Geometry›Constructions
How to construct a 30 degree angle.
• #### Constructing an Angle Bisector - Problem 2

##### Math›Geometry›Constructions
How to construct a 45 degree angle.
• #### Angle Bisectors and Opposite Side Ratios - Concept

##### Math›Geometry›Similarity
How to relate the sides of an angle bisected and the lengths of the opposite side.
• #### Angle Bisectors and Opposite Side Ratios - Problem 1

##### Math›Geometry›Similarity
How to find a missing length created by a median in a triangle using a proportion.
• #### Angle Bisectors and Opposite Side Ratios - Problem 2

##### Math›Geometry›Similarity
How to find a missing length, given the length of the opposite side in a triangle.
• #### Corresponding Parts of Similar Triangles - Concept

##### Math›Geometry›Similarity
How to relate corresponding altitudes, medians and angle bisectors in similar triangles.
• #### Corresponding Parts of Similar Triangles - Problem 1

##### Math›Geometry›Similarity
How to find the length of an angle bisector using similar triangles.
• #### Rhombus Properties - Problem 2

##### Math›Geometry›Polygons
How to find the length of diagonals and angles in a rhombus.
• #### Rhombus Properties - Problem 1

##### Math›Geometry›Polygons
How to find the angles in a rhombus created by drawing one diagonal.
• #### Rectangle and Square Properties - Problem 1

##### Math›Geometry›Polygons
How to find the angles in a square created by drawing diagonals, and finding the lengths of those diagonals.
• #### Special Isosceles Triangle Properties - Concept

##### Math›Geometry›Triangles
How to identify a segment from the vertex angle in an isosceles triangle to the opposite side.
• #### Special Isosceles Triangle Properties - Problem 2

##### Math›Geometry›Triangles
How to find the measure of a vertex angle when a median is given in an isosceles triangle.
• #### Locus and Definition of a Circle and Sphere - Problem 2

##### Math›Geometry›Circles
How to find the locus of points that are equidistant from the sides of an angle.
• #### Point of Concurrency - Concept

##### Math›Geometry›Constructions
How to define point of concurrency; how to identify the four main points of concurrency in triangles.
• #### Rhombus Properties - Concept

##### Math›Geometry›Polygons
How to define a rhombus and compare it to a square and rectangle.
• #### Constructing the Incenter - Concept

##### Math›Geometry›Constructions
How to construct the incenter using a compass and straightedge.
• #### Rectangle and Square Properties - Concept

##### Math›Geometry›Polygons
How to define a rectangle and a square.
• #### Constructing the Incenter - Problem 1

##### Math›Geometry›Constructions
How to construct the inscribed circle of a triangle using a compass and straightedge.