In the pencasts below, I have illustrated how to find the area of regular polygons when given three different bits of information about the polygon. YES. I expect you to be able to know how to do this without notes or prompting. That is called LEARNING.

As you watch these pencasts, you should stop the pencast as you go through and try to predict what I am going to do next, and you should confirm my calculations.

Finding the Area of a Regular Polygon with Only the Apothem

Finding the Area of a Regular Polygon with only the Side Length

Finding the Area of a Regular Polygon with only the Radius

## Table of Contents

## Welcome To YOUR CP Geometry Wiki!

LAW OF COSINESSOLVING A TRIANGLE## Solving a SSA Triangle (from in class)

## Finding Areas of Regular Polygons

In the pencasts below, I have illustrated how to find the area of regular polygons when given three different bits of information about the polygon. YES. I expect you to be able to know how to do this without notes or prompting. That is called

LEARNING.As you watch these pencasts, you should stop the pencast as you go through and try to predict what I am going to do next, and you should confirm my calculations.

Finding the Area of a Regular Polygonwith Only the ApothemFinding the Area of a Regular Polygonwith only the Side LengthFinding the Area of a Regular Polygonwith only the Radiusbrought to you by Livescribe

brought to you by Livescribe

brought to you by Livescribe

## Finding Areas of Sectors of Circles

Finding the Area of a Sector when giventhe Radius and Arc Measure OnlyFinding the Area of a Sector When Giventhe Radius and Sector AreaFinding the Area of a Circular Segmentbrought to you by Livescribe

brought to you by Livescribe

brought to you by Livescribe

## Finding the Length of an Arc

brought to you by Livescribe

## How to turn the MIXED FRACTION result on the WEB2.0CALC to an improper fraction.

Remember! This goes back along way (5th grade. Maybe 4th grade). Here is a different example than the one shown in the screencast.