• #### 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.
• #### Equiangular Polygon Sums - Problem 3

##### Math›Geometry›Polygons
How to find the measure of angles in regular polygons that share sides.
• #### Polygons - Problem 1

##### Math›Geometry›Geometry Building Blocks
How to mark equiangular, equilateral, and regular polygons.
• #### Exterior Angles of a Polygon - Concept

##### Math›Geometry›Polygons
How to find the sum of the exterior angles in a polygon and find the measure of one exterior angle in an equiangular polygon.
• #### Rectangle and Square Properties - Concept

##### Math›Geometry›Polygons
How to define a rectangle and a square.
• #### Area of Regular Polygons - Concept

##### Math›Geometry›Area
How to derive the formula to calculate the area of a regular polygon.
• #### Exterior Angles of a Polygon - Problem 2

##### Math›Geometry›Polygons
How to find a missing exterior angle of a pentagon, given four other angles.
• #### Area of Regular Polygons - Problem 4

##### Math›Geometry›Area
How to find the area of a regular hexagon given only the length of the apothem.
• #### Types of Triangles - Concept

##### Math›Geometry›Geometry Building Blocks
How to classify a triangle based on its side lengths and angle measures.
• #### Exterior Angles of a Polygon - Problem 1

##### Math›Geometry›Polygons
How to find the measures of the three exterior angles of a triangle in terms of a variable.
• #### 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.
• #### Area of Regular Polygons - Problem 1

##### Math›Geometry›Area
How to calculate the area of a regular polygon, given the length of the apothem and side length.
• #### Area of Regular Polygons - Problem 3

##### Math›Geometry›Area
How to calculate the perimeter of a regular polygon given the area and apothem length.
• #### 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.
• #### Trapezoid Arch and Panel Design Problem - Concept

##### Math›Geometry›Polygons
How to strategize about solving a problem with trapezoidal arches.
• #### Trapezoid Arch and Panel Design Problem - Problem 2

##### Math›Geometry›Polygons
How to find the measures of a trapezoid in a five-block arch.
• #### Area of Regular Polygons - Problem 2

##### Math›Geometry›Area
How to find the length of an apothem in a regular polygon given the area and side length.
• #### Trapezoid Arch and Panel Design Problem - Problem 1

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