Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Perimeter
Find a quick, concise explanation of perimeter. Perimeter formulas are given for common plane figures.
ClassFlow
Class Flow: 12 Squares Investigations
[Free Registration/Login Required] In this lesson students investigate the relationship between meeting points and the perimeter of shapes by joining 12 squares.
ClassFlow
Class Flow: Area Perimeter
[Free Registration/Login Required] This flipchart demonstrates how to calculate perimeters and areas of simple compound shapes that can be split into rectangles.
ClassFlow
Class Flow: Building a House
[Free Registration/Login Required] The flipchart is designed to review or introduce perimeter. The students are designing they yard by figuring out the amount needed to make a flower border, fence, and sand box.
Sophia Learning
Sophia: Calculating the Surface Area of Pyramids
Surface area of pyramids is explored in this video resource. The lesson includes three detailed examples using a square, hexagonal, and triangular pyramid.
Sophia Learning
Sophia: Perimeter
Perimeter is defined in this video tutorial. The lesson includes three examples. Students can check their understanding of the concept with an assessment.
University of Cambridge
University of Cambridge: Nrich: Fencing
On this one page website sharpen your logic, area, perimeter, and pattern recognition skills while working on this unique fencing challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Numerically Equal
The challenge for this problem is to see if you can find rectangular shapes that have the same number for their perimeter and area. Solutions are available at this one page website.
Shmoop University
Shmoop: Basic Geometry: Perimeter and Circumference
The geometry resource explores perimeter and circumference. Notes, examples, and practice exercises are included.
Math Is Fun
Math Is Fun: Perimeter
Students learn about perimeter. Notes, examples, and practice problems are included in the tutorial.
That Quiz
That Quiz: Triangulos
These interactive activities are designed to examine the mathematical concepts of length, perimeter, and area. These activities may be used to develop students' understanding of these mathematical concepts.
That Quiz
That Quiz: Geometria
These interactive activities are designed to examine the mathematical concepts of area, perimeter, surface area and volume. These activities may be used to develop students' understanding of these mathematical concepts.
ClassFlow
Class Flow: Geoboards
[Free Registration/Login Required] Geoboards bring challenge into the classroom as the student uses methods to measure length, area, and perimeters of polygons.
Maths Challenge
Maths challenge.net: Perimeter Sequence
A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find the perimeter from the sequence.
Other
Basket Math: Perimeter Practice
Use this interactive site to practice finding the perimeter of a square.
National Council of Teachers of Mathematics
Nctm: Figure This: Table for 19 (Pdf)
The waiters at Polygon's Restaurant need your help. See if you can use your problem solving and patterning skills to help them solve this math challenge. Discover how developing these skills could be useful in real life situations, in...
National Council of Teachers of Mathematics
Nctm: Figure This: Patios
Does bigger perimeter mean bigger area? Answer this question when you try this math challenge from the NCTM Math Challenges for Families series. Discover how understanding area and perimeter can be useful in real world situations.
University of Georgia
University of Georgia: Inter Math: Perimeter
This site provides information about perimeters of polygons along with an example. Be sure to follow the links to related terms, challenging problems, more information, and the interactive check point involving polygon perimeters located...
Purple Math
Purplemath: Geometry Word Problems: Introduction
Introduces how to set up and solve simple geometric-figure word problems. Includes advice regarding formulas to memorize.
Math Slice
Math Slice: Area & Perimeter: Math Worksheets
This tool allows you to create worksheets of word problems at varying levels of difficulty where students must calculate the area or perimeter of different polygon shapes. You can choose to set up the page using any of these polygon...
Calculator Soup
Calculator Soup: Isosceles Triangles Calculator
Use this calculator to find the sides, perimeter, area, semiperimeter, and altitude of an isosceles triangle.
Calculator Soup
Calculator Soup: Rectangle Calculator
Use this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter, or diagonals and you can calculate the other 3 rectangle variables. A square calculator is a special case of the rectangle...
Calculator Soup
Calculator Soup: Equilateral Triangles Calculator
An equilateral triangle is a special case of a triangle where all 3 sides have equal length and all 3 angles are equal to 60 degrees.