Pythagoras theorem

  This is Pythagoras theorem Mr rees has been teaching us this way of math for 2 weeks. Pythagoras theorem has been around for 2000 years and maybe even longer.

A search and rescue boat goes to lunch off of the shore the engine fails the current is going 5km/h and the wind is going 20km/h how fare will the boat go in 30min 1hr 1.5hr 4hr.

to solve this question you must drow a diagram then you must lable what has been given to you like this a=2.5 b=5 c=hyp gust so you know the hypotenuse is the opposite side of the right angle.

But before we do that we have to explain how we calculate c. To calculate c the tringle has to be a right angle triangle and is at a right angle triangle, yes it is. So now we can do that step that is under this explosion.

Then you do this you go 2.5^2+5^2=31.25 or 125/4 

Do you know what a 2 or a \sqrt{ } is if not I will explain what it is \sqrt{ } is A square root of a number is a value that, when multiplied by itself, gives the number?. The symbol is √ which always means the positive square root. now time to explain what squared means squared means this. make square or rectangular; give a square or rectangular cross-section to. 

When is Pythagoras theorem used, Pythagoras theorem The Pythagorean theorem is used any time we have a right triangle, we know the length of two sides, and we want to find the third side. For example, I was in the furniture store the other day and saw a nice entertainment centre on sale at a good price. The space for the TV set measured 17" x 21". and that is when it is used.