Learn the formula to find the perimeter of a rectangle. Explore examples of how to calculate a rectangle's perimeter.

Learn how to find the perimeter of a rectangle in coordinate plane with no sides horizontal or vertal, and see examples that walk through sample problems step-by-step for you to improve your math ...

Learn about perimeter, how to use mathematical formulas to calculate the perimeter of triangles and rectangles, and how to use perimeter to determine the length of unknown polygon sides.

Learn how to find the perimeter from the area of a given shape. Understand the stepwise method of calculations for some common shapes like square, rectangle, circle, and triangle.

Learn how to write algebraic expressions for the perimeter of a figure, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Learn how to calculate the perimeter of a square or a rectangle. We will see two examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Explore the area and perimeter of a rectangle in this 5-minute video. Learn the formulas and methods for calculating them, with examples, then take a quiz.

Learn how to find the side length of a rectangle given one side length and either the area or perimeter and see several examples that walk through, step-by-step, how to solve this type of math ...

Learn how to find the perimeter of a composite shape made of rectangles when a side length is missing, and see examples that walk through sample problems step-by-step for you to improve your math ...

Learn how to find the lengths of the sides of a rectangle given its perimeter and the relationship between its sides, and see examples that walk through step-by-step how to solve this type of math ...