What effect does changing the perimeter have on the area of a figure? The five problems in the resource explore this question at various grade levels. Elementary problems focus on the perimeter of rectangles and irregular figures with...

The problem seems simple: find the area of the equilateral triangle whose sides are each length 1. In fact, this same problem is solved in 8th grade, addressing a different Common Core standard, using the formula for area of a triangle...

Using their knowledge of right triangles, pupils find out how far a ship is from a light house. Class members determine how far around the world a ship would be sailing at a constant speed.

Explore different polygons and find their perimeter with this interactive lesson from T.V.411. Students see examples of polygons in everyday life and have immediate feedback to your responses to lesson questions.

[Free Registration/Login Required] Students move the points for the lengths of sides to determine the perimeter. Click challenge me to answer practice questions and click learn more to watch a video.

This video geometry lesson [6:14] explains the concept of perimeter and has varied exercises for students to practice.

[Free Registration/Login Required] Students move the points on the parallelogram to determine the perimeter. Click challenge me to answer practice questions and click learn more to watch a video.

[Free Registration/Login Required] Students are given the base and height of a rectangle and are to determine the area and perimeter. Click challenge me to answer practice questions and click learn more to watch a video.

[Free Registration/Login Required] Students explore the relationship between and area and the base and height of a triangle. Click challenge me to answer practice questions and click learn more to watch a video.

Practice using your graphing calculator for Geometry problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.

[Free Registration/Login Required] Students are given the base and height of a triangle and are to determine the area and perimeter. Click challenge me to answer practice questions and click learn more to watch a video.

[Free Registration/Login Required] Students are given the two diagonals of a kite of rhombus and are to determine the area and perimeter. Click challenge me to answer practice questions and click learn more to watch a video.

Students learn about perimeter. Notes, examples, and practice problems are included in the tutorial.

[Free Registration/Login Required] Students move points to make diagonals in order to solve for area and perimeter of polygons. Click challenge me to answer practice questions.

Students solidify their understanding of the terms "circumference" and "rotation" through the use of LEGO MINDSTORMS NXT robotics components. They measure the circumference of robot wheels to determine how far the robot can travel during...

Students learn about the ellipse. The tutorial consists of notes, examples, and practice problems to check for comprehension.