Pythagorean Theorem (lesson 2)

• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 2

Maths

Valentine's day 

Sometimes you need an extra line to
create a right angle. This line is called...
(you may look in your book)

1. a help line
2. an auxiliary line
3. a height line
4. a Pythagorean line

Pythagoras was born in...

1. -580 BC
2. 500
3. 1945
4. 1982

Pythagoras was from ....

1. Belgium
2. France
3. America
4. Greece

Pythagorean theorem is ...

1. AB²+AC²=BC²
2. BC²+ AC² = AB²
3. AB²+BC²=AC²
4. No idea, I didn't do my homework

A certain triangle has sides of 9, 40 and 41 cm. Does this triangle have a right angle? Work it out in your notebook and take a picture.

Before you can apply the Pythagorean Theorem, the triangle has to have .....

1. 2 equals side
2. an angle larger than 90 degrees.
3. an angle of 90 degrees

Calculate the length of QR.
(just type in the answer)

What is the purpose of the Pythagorean Theorem in a triangle?

1. Calculate the height
2. Calculate the angles
3. Calculate the depth
4. Calculate the sides

Calculate the distance between points A(3,1) and
B (-2,-1). Round to one decimal place.
Only type in your answer.