• #### Chords and a Circle's Center - Problem 1

##### Math›Geometry›Circles
How to find the length of two chords where the length of the perpendicular bisectors are given.
• #### Inscribed Angles - Problem 2

##### Math›Geometry›Circles
How to find the measure of intercepted arcs, given the vertex angle of an inscribed isosceles triangle.
• #### Vertical Angles - Problem 3

##### Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to determine the measure of vertical angles that are supplementary.
• #### Vertical Angles - Problem 2

##### Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to solve for a variable used to measure vertical angles.
• #### Duplicating a Line Segment - Problem 2

##### Math›Geometry›Constructions
How to construct a triangle given three line segments.
• #### 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.
• #### Chords and a Circle's Center - Problem 2

##### Math›Geometry›Circles
How to find the center of a circle given only an arc.
• #### 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.
• #### Parts of a Circle - Problem 1

##### Math›Geometry›Geometry Building Blocks
How to classify arcs and define chords and tangents.
• #### Angles: Types and Labeling - Problem 1

##### Math›Geometry›Geometry Building Blocks
How to define congruent angles. How to label adjacent angles.
• #### Radii to Tangents - Problem 2

##### Math›Geometry›Circles
How to calculate the measure of a missing angle in a quadrilateral formed by two circles that are tangent but not congruent and their radii drawn to a common line of tangency.
• #### Vertical Angles - Problem 1

##### Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to find the measure of an angle using the Triangle Angle Sum Theorem and vertical angles.
• #### Trapezoid Midsegment Properties - Problem 2

##### Math›Geometry›Polygons
How to find the length of the segments that divide the sides of a triangle into three congruent segments.
• #### Center and Apothem of Regular Polygons - Concept

##### Math›Geometry›Area
How to define the apothem and center of a polygon; how to divide a regular polygon into congruent triangles.
• #### Chords and a Circle's Center - Problem 3

##### Math›Geometry›Circles
How to find the radius of a circle when the length of a chord and its distance to the center of the circle is given.
• #### Parts of a Circle - Concept

##### Math›Geometry›Geometry Building Blocks
How to define a circle and identify its main parts.
• #### Rectangle and Square Properties - Problem 2

##### Math›Geometry›Polygons
How to find the point of intersection of the diagonals of a rectangle in a coordinate plane.
• #### 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.