39 Videos for "rectangles"

Rectangle and Square Properties  Concept
Math › Geometry › Polygons
How to define a rectangle and a square. 
Approximating Area Using Rectangles  Concept
Math › Calculus › The Definite Integral
How to approximate the area under a curve using rectangles. 
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. 
Rectangle and Square Properties  Problem 1
Math › Geometry › Polygons
How to find the angles in a square created by drawing diagonals. 
Approximating Area Using Rectangles  Problem 3
Math › Calculus › The Definite Integral
How to estimate the area between a curve and the xaxis with left and righthand sums. 
Approximating Area Using Rectangles  Problem 1
Math › Calculus › The Definite Integral
How to estimate the area between a curve and the xaxis with left and righthand sums. 
Approximating Area Using Rectangles  Problem 2
Math › Calculus › The Definite Integral
How to estimate the area between a curve and the xaxis with left and righthand sums. 
Area of Parallelograms  Concept
Math › Geometry › Area
How to find the area of any parallelogram using rectangle area formulas. 
Perimeter  Concept
Math › Geometry › Geometry Building Blocks
How to define perimeter and calculate it for squares, rectangles, and circles. 
Area of Triangles  Concept
Math › Geometry › Area
How to derive the area of a triangle formula using the rectangle area formula. 
Area of Parallelograms  Problem 4
Math › Geometry › Area
How to find the area of a rectangle, given the perimeter and one side. 
Rhombus Properties  Concept
Math › Geometry › Polygons
How to define a rhombus and compare it to a square and rectangle. 
Perimeter  Problem 1
Math › Geometry › Geometry Building Blocks
How to calculate the side length of a rectangle given the perimeter and a different side. 
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. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Problem 2
Math › Geometry › Pythagorean Theorem
How to calculate the length of a diagonal in a rectangle given its side lengths. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Problem 2
Math › Trigonometry › Pythagorean Theorem
How to calculate the length of a diagonal in a rectangle given its side lengths. 
Area of Kites and Rhombuses  Concept
Math › Geometry › Area
How to derive the area formula of a kite based on the rectangle formula; how to calculate the area of a rectangle using diagonal lengths. 
Area of Trapezoids  Concept
Math › Geometry › Area
How to derive the area of a trapezoid formula using the area of a rectangle. 
Area of Parallelograms  Problem 2
Math › Geometry › Area
How to find the base length of a parallelogram given the area. 
Area of Parallelograms  Problem 1
Math › Geometry › Area
How to calculate the area of a parallelogram, given the lengths of the sides and a height.