• #### Central Angles and Intercepted Arcs - Concept

##### Math›Geometry›Circles
How to define a central angle and find the measure of its intercepted arc; how to describe the intercepted arcs of congruent chords.
• #### Central Angles and Intercepted Arcs - Problem 1

##### Math›Geometry›Circles
How to find arc measures, given the measure of its central angle measure, or find central angle measures, given congruent chords.
• #### Central Angles and Intercepted Arcs - Problem 3

##### Math›Geometry›Circles
How to find the measure of an intercepted arc given the measure of two arcs.
• #### Central Angles and Intercepted Arcs - Problem 4

##### Math›Geometry›Circles
How to find the measure of an arc created by the vertices of an inscribed regular polygon.
• #### Central Angles and Intercepted Arcs - Problem 2

##### Math›Geometry›Circles
How to find the arc and angle measure when a diameter is given, as well as a radius and a chord drawn between the two.
• #### Inscribed Angles - Problem 3

##### Math›Geometry›Circles
How to find the measure of inscribed angles that have congruent intercepted arcs.
• #### Inscribed Angles - Problem 1

##### Math›Geometry›Circles
How to find the measure of an inscribed angle and a missing arc.
• #### Inscribed Angles - Problem 2

##### Math›Geometry›Circles
How to find the measure of intercepted arcs, given the vertex angle of an inscribed isosceles triangle.
• #### Parts of a Circle - Problem 1

##### Math›Geometry›Geometry Building Blocks
How to classify arcs and define chords and tangents.
• #### Inscribed Angles - Concept

##### Math›Geometry›Circles
How to calculate the measure of an inscribed angle.
• #### Chords and a Circle's Center - Problem 2

##### Math›Geometry›Circles
How to find the center of a circle given only an arc.
• #### Cyclic Quadrilaterals and Parallel Lines in Circles - Concept

##### Math›Geometry›Circles
How to prove that opposite angles in a cyclic quadrilateral are congruent; how to prove that parallel lines create congruent arcs in a circle.
• #### Parts of a Circle - Concept

##### Math›Geometry›Geometry Building Blocks
How to define a circle and identify its main parts.
• #### Tangent Segments to a Circle - Problem 3

##### Math›Geometry›Circles
How to calculate the measure of an intercepted arc formed by two tangents drawn from the same point.