83 Videos for "polygons"

Number of Diagonals in a Polygon  Problem 1
Math › Geometry › Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of diagonals in a polygon when you know the number of sides. 
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. 
Number of Diagonals in a Polygon  Problem 2
Math › Geometry › Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of sides in a polygon when you know the number of 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. 
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. 
Properties of Similar Polygons  Concept
Math › Geometry › Similarity
How to identify if two figures are similar. 
Properties of Similar Polygons  Problem 2
Math › Geometry › Similarity
How to find missing sides of similar triangles that share a side. 
Properties of Similar Polygons  Problem 1
Math › Geometry › Similarity
How to identify if two quadrilaterals are similar, given three angles and four sides. 
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. 
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. 
Trapezoid Arch and Panel Design Problem  Problem 2
Math › Geometry › Polygons
How to find the measures of a trapezoid in a fiveblock arch. 
Trapezoid Arch and Panel Design Problem  Concept
Math › Geometry › Polygons
How to strategize about solving a problem with trapezoidal arches. 
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  Problem 1
Math › Geometry › Polygons
How to find the measures of a trapezoid in a 10panel design. 
Trapezoid Properties  Concept
Math › Geometry › Polygons
How to identify a trapezoid and its special properties. 
Trapezoid Properties  Problem 2
Math › Geometry › Polygons
How to find all the angles in an isosceles trapezoid, given one angle. 
Rhombus Properties  Problem 2
Math › Geometry › Polygons
How to find the length of diagonals and angles in a rhombus.