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## Angles

## Contents |

## Angle Relationships/Properties of Parallel Lines

The following worksheets can be used individually or as a series. Each worksheet is hyperlinked to the following worksheet.

This lesson plan was created to accompany the series of worksheets Angle Pairs Lesson Plan created by Barbara Perez

- Angle Class Classroom Demonstrator All Math Words Encyclopedia Interactive page demonstrating angle classes (acute, obtuse, etc.). This page is in large format intended for projection onto a classroom screen. By David McAdams

- Angle All Math Words Encyclopedia This encyclopedic entry contains a number of interactive geogebra demonstrations pertaining to angles. By David McAdams

- A french translation of this work: Download by Yves Delhaye

## Polygon Angle Relationships

The following worksheets can be used individually or as a series created by Barbara Perez.

This lesson plan was created to accompany the series of worksheets Polygon Angle Relationships Lesson Plan

This worksheet was created to accompany the lesson plan Polygon Interior Angle Sum Worksheet

## Application: Clock

- Clock - construction of a 12 hour clock in GeoGebra

## Using a protractor

Protractor Download - Use this applet to practice using a protractor. Email Duane Habecker if you have any questions.

Protractor 2 Download - This is a second protractor applet. An angle is randomly generated. Use the protractor to measure the angle.

Measuring_Drawing_Angles 12 InterActivities for Measuring and Drawing with Protractor - available online/offline. LFS

## An activity about angles between parallels

angles between parallels, created by Dimitris Poimenidis.

## Angles - a simple introduction

a series of geometry resources for GCSE/Secondary/High School students created by Alginon

## Angle Investigation

Use the dynamic worksheet to investigate the relationship between corresponding angles, alternate exterior angles, alternate interior angles, and consecutive interior angles when two lines are cut by a transversal. Use the accompanying Word documents to lead students through their investigation. Created by jarmour at the University of Pittsburgh.

## Angle of Elevation and Depression

- Angle of Elevation and Depression All Math Words Encyclopedia Interactive page demonstrating angles of elevation and depression. By David McAdams