Pythagoras' Theorem

Prior knowledge

1. What is a right-angled triangle?
   
   
   
   A right angled triangle can be defined as, a triangle which has a right angle in it.




2. How to calculate the area of a square?
   
   

The area of a square can be found by multiplying the base times itself.
For instance, if a square has a base of length 6 inches its area is 6*6=36 square inches.

So what is Pythagoras' theorm?

• Example 1
  
• Example 2


• Example 3

Proof Games


Let we try some games here

1. Game 1


2. Game 2
   

Application of Pythagoras' Theorem

Late at night, young Pythagoras tries to climb his 5 m long ladder up to his darling's window. The window is 4.50 m above the ground.

Exercises

1. if a=9 and b=12, then c=?
   
2. if a=2.8 and b=4.5, then c=?
   
3. if b=200 and c=400, then a=?