• #### Point of Concurrency - Concept

##### Math›Geometry›Constructions
How to define point of concurrency; how to identify the four main points of concurrency in triangles.
• #### Constructing the Circumcenter - Problem 1

##### Math›Geometry›Constructions
How to construct the circumscribed circle of a triangle using a compass and straightedge.
• #### Constructing the Incenter - Concept

##### Math›Geometry›Constructions
How to construct the incenter using a compass and straightedge.
• #### Constructing the Orthocenter - Concept

##### Math›Geometry›Constructions
How to construct the orthocenter of a triangle.
• #### Constructing the Orthocenter - Problem 1

##### Math›Geometry›Constructions
How to construct the orthocenter of an obtuse triangle.
• #### Constructing the Circumcenter - Concept

##### Math›Geometry›Constructions
How to construct the circumcenter using a compass and straightedge.
• #### Constructing the Centroid - Problem 1

##### Math›Geometry›Constructions
How to construct the centroid of a triangle.
• #### Constructing the Centroid - Concept

##### Math›Geometry›Constructions
How to identify the centroid and the way it divides each of the medians.
• #### Constructing the Incenter - Problem 1

##### Math›Geometry›Constructions
How to construct the inscribed circle of a triangle using a compass and straightedge.
• #### Constructing the Centroid - Problem 2

##### Math›Geometry›Constructions
How to find missing lengths in a triangle where the three medians are drawn creating the centroid.