2TH 6.1 Introduction to the Pythagoras Theorem

• Wiskunde
• Middelbare school
• havo
• Leerjaar 2

Chapter 6 Pythagoras

Have a pencil and some grid paper ready!

Pythagoras was a Greek philosopher who lived between 580 and 500 BC

What is Pythagoras' Theorem?

https://www.youtube.com/watch?v=hEEzrxLprxs

Pythagoras' theorem only applies to right angled triangles!

• 1 right angle
• 1 hypotenuse    
• 2 arms (the shorter sites)

             hfd 1 functies           3 vwo

Theory

Which side is the hypotenuse?

1. AB
2. AC
3. BC

In which type of triangle can you use Pythagoras' theorem?

1. In every triangle
2. In an isosceles triangle
3. In a right-angled triangle
4. In an equilateral triangle

Which is the correct theorem for this triangle?

1. KL​2​​+KM​2​​=LM​2​​
2. LM​2​​+KM​2​​=KL​2​​
3. LM​2​​+KL​2​​=KM​2​​

Calculate the length of side LM

1. 45
2. √​27​​​
3. √​45​​​
4. 27

How to calculate LM?

Homework

6.1 Do Exercises 4, 5 and 6

Find it easy? Do C1 on page 211

Don't forget to check your work with the solutions book!

Practice for the next test by doing Summary Exercises of Ch 5

Use the Parrot Beak to work out the brackets!