Pythagorean Theorem

Pythagorean Theorem - notes and examples. These animations show demonstrations of the Pythagorean theorem - they are visual proofs. 

There are more examples and questions to try from Project Maths here. Note how the answer is written out - this is how you should write your work (at least three or four lines).

with this online calculator you can enter values and check your answers.

Click on the picture to see this turn

Angry Surds - this is a great game. You can practice the Pythagorean Theorem, Arithmetic and Surds all at the same time.

The Pythagorean theorem is very important in maths - you will use it regularly all the way up to sixth year and possibly beyond! Make sure that you have a full understanding of it.

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Indices and Surds

Indices
The notes below summarise the rules for powers or indices. It is important to know the rules and how to use them. If you understand the rules for multiplication and division then all the other rules follow from this.

Make sure that you know what to do when

• the index is negative
• the index is zero
• the index is a fraction

Notes on Indices The notes open in a new page and if you download them to your computer the maths symbols may be easier to read.

Surds
There are notes below on simple problems with surds and a pencast on some harder examples.

Notes on Surds
 
Angry Surds - this is a great game. You can practice the Pythagorean Theorem, Arithmetic and Surds all at the same time.

This video has lots of examples of working with surds 
(radicals are roots and surds are expressions that have irrational roots)





Pencast on some more complicated examples with surds.

Surds
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