Sophia Learning
Sophia: Square Practice Problems
This video lesson demonstrates how to use the characteristics of a square to find angle measures and side lengths. [4:31]
Sophia Learning
Sophia: Area of Regular Polygons
This video lesson demonstrates how to find the area of any regular polygon using the apothem. Students can check their understanding with an assessment.
Khan Academy
Khan Academy: Finding Missing Side Length When Given Perimeter
Demonstrates how to use a known perimeter to calculate the missing length of a side of a polygon. [4:54]
Khan Academy
Khan Academy: Finding Perimeter When a Side Length Is Missing
Demonstrates how to find the perimeter of a polygon when a side length is missing. [3:31]
Math Antics
Math Antics: Perimeter
Gain a basic understanding of perimeter by watching easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [7:28]
Mucho Math
Algebra2go: Finding Perimeter of Rectangular Shapes
This video requires students to find missing side lengths of rectangular shapes prior to finding the perimeter.
Khan Academy
Khan Academy: Geometry: Perimeter and Area of a Non Standard Polygon
Explains how to find the perimeter and area of a non-standard, or irregular polygon. [3:03] CCSS.Math.Content.3.MD.C.7.d Recognize area as additive.
Khan Academy
Khan Academy: Equation Examples for Beginners: Example: Dimensions of a Garden
Application problems with equation in one variable. A video that demonstrates how to solve a perimeter word problem.
Khan Academy
Khan Academy: Perimeter and Area: Perimeter and Area Basics
This video describes how to calculate area and perimeter of rectangles and squares.
Khan Academy
Khan Academy: Unit Conversion: Perimeter and Unit Conversion
Students learn to solve perimeter problems that involve converting units within the same measurement system.
Khan Academy
Khan Academy: Worked Examples: Geometry: Interesting Perimeter and Area Problems
Students explore three example problems involving perimeter and area of complex shapes.
Art of Problem Solving
Art of Problem Solving: Length and Perimeter
Video tutorial uses examples to reinforce understanding of length and perimeter. [7:58]
Loyola University Chicago
Math Flix: Area & Perimeter Rectangle Riddles Intro
This QuickTime movie compares the area and perimeter of rectangles. The formula for perimeter is explained. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Khan Academy
Khan Academy: Area & Perimeter Word Problem: Dog Pen
Sal figures out the width of a dog pen.
Khan Academy
Khan Academy: Perimeter Word Problem: Tables
Lindsay solves a perimeter word problem that involves combining two perimeters.
Khan Academy
Khan Academy: Perimeter Word Problem: Skating Rink
Solve a word problem involving perimeter of a rectangle.
Khan Academy
Khan Academy: Perimeter: Introduction
Perimeter is the distance around the edge of a shape. Learn how to find the perimeter by adding up the side lengths of various shapes
Khan Academy
Khan Academy: Finding Perimeter When a Side Length Is Missing
Lindsay finds the perimeter of a figure when a side length is not given.
Khan Academy
Khan Academy: Finding Missing Side Length When Given Perimeter
Lindsay finds missing side lengths on polygons when given all other side lengths and the perimeter.
Khan Academy
Khan Academy: Perimeter and Unit Conversion
Sal converts metric unit to help solve a perimeter problem.
Khan Academy
Khan Academy: Challenging Perimeter Problem
Perimeter of rectangle covered by 9 non-overlapping squares. From 2000 American Invitational Math Exam.
Khan Academy
Khan Academy: Challenge Problems: Perimeter & Area
Three example problems involving perimeter and area.
Khan Academy
Khan Academy: Perimeter & Area
Perimeter is the distance around the outside of a shape. Area measures the space inside a shape. Learn how to calculate perimeter and area for various shapes.