# Pythagoras

 Overview Review Pythagoras: finding the hypotenuse or a shorter side using Pythagoras and application problems ViHarts video on Khan Academy 'Whats up with pythagoras' Khan Academy Videos: Pythagoras Iintroduction, Example Achievement Standard web link: 54 Pythagoras proofs   |   web link: java demo | web link: pythag proofs | a web link about Pythagoras | Heaps of other Pythagoras web information (wikipedia) Assessment Criteria | Animation p131

## Overview

###### Pythagoras links the sides of a right angle triangle
Square the side lengths

Areas a2+b2=c2

Cut up a2

Overlay over c2

#### Mouse-over key words a2 + b2 = c2

## Finding hypotenuse length

###### 'Add the squares'
Square the short side lengths

Square root

Summary

#### Mouse-over key words ## Finding a short length

###### 'Subtract the squares'
Square the side lengths

Subtract squares

Square root

Summary

#### Mouse-over key words ## Applications

Form a triangle

Add or Subtract squares?

Working

#### Mouse-over key words 