33 Videos for "regular polygon"

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. 
Center and Apothem of Regular Polygons  Problem 1
Math › Geometry › Area
How to find the length of an apothem in a regular polygon given a side length and the number of sides. 
Area of Regular Polygons  Concept
Math › Geometry › Area
How to derive the formula to calculate the area of a regular polygon. 
Area of Regular Polygons  Problem 3
Math › Geometry › Area
How to calculate the perimeter of a regular polygon given the area and apothem length. 
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 2
Math › Geometry › Area
How to find the length of an apothem in a regular polygon given the area and side length. 
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. 
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 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. 
Equiangular Polygon Sums  Problem 1
Math › Geometry › Polygons
How to find the measure of one angle in a regular nonagon. 
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. 
Polygons  Problem 2
Math › PreAlgebra › Introductory Geometry
Formulas for interior and exterior angles of regular polygons 
Surface Area of Pyramids  Concept
Math › Geometry › Area
How to calculate the surface area of any pyramid, emphasizing regular polygons as bases. 
Solving Formulas  Problem 3
Math › Geometry › Area
How to solve the area of a regular polygon formula for the side length. 
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. 
Rectangle and Square Properties  Concept
Math › Geometry › Polygons
How to define a rectangle and a square. 
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. 
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. 
Surface Area of Pyramids  Problem 2
Math › Geometry › Area
How to calculate the surface area of a regular hexagonal pyramid.