83 Videos for "polygons"

Surface Area of Pyramids  Concept
Math › Geometry › Area
How to calculate the surface area of any pyramid, emphasizing regular polygons as bases. 
Similarity and Area Ratios  Problem 1
Math › Geometry › Similarity
How to find the ratio of corresponding lengths given the ratio of areas between similar polygons. 
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. 
Volume of Pyramids  Concept
Math › Geometry › Volume
How to find the volume of any pyramid. 
Volume of Prisms  Problem 1
Math › Geometry › Volume
How to calculate the volume of a trapezoidal prism. 
Rotational Symmetry  Concept
Math › Geometry › Transformations
How to define rotational symmetry and identify the degree of rotational symmetry of common regular polygons. 
Volume of Prisms  Concept
Math › Geometry › Volume
How to find the volume of any prism, right or oblique using a general formula. 
Volume of Prisms  Problem 2
Math › Geometry › Volume
How to find the height of a triangular prism given the volume. 
Surface Area of Pyramids  Problem 2
Math › Geometry › Area
How to calculate the surface area of a regular hexagonal pyramid. 
Solving Formulas  Problem 2
Math › Geometry › Area
How to solve the area of a sector formula for the radius. 
Dilations  Problem 2
Math › Geometry › Transformations
How to perform a dilation of a polygon given a center of dilation and a scale factor. 
Solving Formulas  Problem 1
Math › Geometry › Area
How to solve for one of the bases of a trapezoid in the trapezoid area formula. 
Surface Area of Pyramids  Problem 1
Math › Geometry › Area
How to calculate the surface area of a square pyramid, given the side length and height. 
Volume of Prisms  Problem 3
Math › Geometry › Volume
How to find the volume of an oblique square prism given a side and the height of the prism. 
Similarity and Area Ratios  Problem 3
Math › Geometry › Similarity
How to find the area of similar triangles given one side length and one area. 
Vertex and Diagonals  Concept
Math › Geometry › Geometry Building Blocks
How the vocabulary word vertex applies to different objects in Geometry. 
Distance Formula  Problem 2
Math › Geometry › Pythagorean Theorem
How to identify a polygon (a triangle in this problem) as isosceles, equilateral, or scalene using the distance formula. 
Distance Formula  Problem 2
Math › Trigonometry › Pythagorean Theorem
How to identify a polygon (a triangle in this problem) as isosceles, equilateral, or scalene using the distance formula. 
Solving Formulas  Concept
Math › Geometry › Area
How to strategize about solving formulas for variables; how to solve the area of a rectangle formula for base and height; how to solve the area of a triangle formula for base and for height.