• #### Types of Triangles - Concept

##### Math›Geometry›Geometry Building Blocks
How to classify a triangle based on its side lengths and angle measures.
• #### Equiangular Polygon Sums - Problem 3

##### Math›Geometry›Polygons
How to find the measure of angles in regular polygons that share sides.
• #### Tangent Segments to a Circle - Problem 2

##### Math›Geometry›Circles
How to find the measure of an angle formed by a chord drawn between two points of tangency.
• #### Equiangular Polygon Sums - Concept

##### Math›Geometry›Polygons
How to find the measure of one angle in any equiangular or regular polygon.
• #### Equiangular Polygon Sums - Problem 2

##### Math›Geometry›Polygons
How to find the number of sides in an equiangular polygon given the measure of one angle.
• #### Equiangular Polygon Sums - Problem 1

##### Math›Geometry›Polygons
How to find the measure of one angle in a regular nonagon.
• #### Cyclic Quadrilaterals and Parallel Lines in Circles - Problem 2

##### Math›Geometry›Circles
How to calculate the measure of an arc created by a cyclic parallelogram.
• #### Rotations - Problem 2

##### Math›Geometry›Transformations
How to rotate a given figure a given degree measure about a given point.
• #### Area of a Sector - Problem 1

##### Math›Geometry›Area
How to find the area of a sector when the radius and arc measure are given.
• #### Rotations - Problem 4

##### Math›Geometry›Transformations
How to rotate a point about the origin a given degree measure in the coordinate plane.
• #### Area of a Sector - Problem 2

##### Math›Geometry›Area
How to find the radius of a circle when the area and arc measure are given.
• #### Area of a Sector - Problem 3

##### Math›Geometry›Area
How to find the area of a sector given the arc measure and the length of the intercepted chord.
• #### Special Isosceles Triangle Properties - Problem 1

##### Math›Geometry›Triangles
How to find the measure of a missing length in an isosceles triangle with an altitude.
• #### Arc Length - Problem 3

##### Math›Geometry›Circles
How to find the arc length formed by an inscribed angle given the diameter.
• #### Trapezoid Arch and Panel Design Problem - Problem 2

##### Math›Geometry›Polygons
How to find the measures of a trapezoid in a five-block arch.
• #### Trapezoid Arch and Panel Design Problem - Problem 1

##### Math›Geometry›Polygons
How to find the measures of a trapezoid in a 10-panel design.