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PYTHAGORAS THEOREM

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The Idea. Draw a right angle triangle with one side 3 squares long and the other 4 then ... 62 82 ?2 = 36 64 ?2 = 100 ?2 = Sq. Rt. 100 ? = 10. Using the Idea ... – PowerPoint PPT presentation

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Title: PYTHAGORAS THEOREM


1
Sunday, 10 January 2010
PYTHAGORAS THEOREM
  • Objectives
  • Understand the Idea
  • Find the Unknown Side of a Right Angle Triangle

2
The Idea
3
Draw a right angle triangle with one side 3
squares long and the other 4 then investigate the
area of the big square
?
4
5
The area of the big square is 25. 25 9 16 52
32 42
5
25
5
3
5
4
5
The area of the big square is 25. 25 9 16 52
32 42
5
3
4
6
This relationship gives the rule
?
6
a
c
8
?2 62 82 ?2 36 64 ?2 100 ?2 Sq. Rt.
100 ? 10
b
a2 b2 c2
7
Using the Idea
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