### Theory

 1 Pythagoras theorem 2 Converse of the Pythagoras ttheorem

### Exercises

 1 Find the third side Difficulty: easy 2 2 Find the measure of the hypotenuse Difficulty: easy 2 3 Calculate the distance Difficulty: easy 2 4 Find the distance to the house Difficulty: easy 3 5 Find the radius of the circle Difficulty: medium 1 6 Find the distance between the boats Difficulty: medium 3 7 Determine the dimensions of a recctangle Difficulty: medium 3 8 Determine the sides of the triangle Difficulty: medium 3 9 Determine the third angle of the triangle Difficulty: medium 3 10 How far is the man from the tower? Difficulty: hard 4 11 Calculate the equidistance Difficulty: hard 4 12 Find the height of the ladder and answer the question Difficulty: hard 5 13 Find the area of the triangle Difficulty: hard 4 14 Find the initial distance Difficulty: hard 4 15 Calculate the distance between the two cars Difficulty: hard 4

### Tests

 1 Training test Difficulty: medium 11

### Teacher manual

 1 Methodical recommendation