Get A+ with YaClass!
Register now to understand any school subject with ease and get great results on your exams!

### Theory

 1 Theorem based on the area of similar triangles 2 Pythagoras theorem 3 Converse of the Pythagoras ttheorem 4 Perpendicular-on-Hypotenuse theorem

### Exercises

 1 Find the ratio of the areas Difficulty: easy 2 2 Find the area of the similar triangle Difficulty: easy 2 3 Find the ratio of the corresponding sides Difficulty: easy 2 4 Determine whether the sides form a right triangle Difficulty: easy 2 5 Check whether the numbers satisfies the Pythaoras theorem Difficulty: easy 2 6 Find the unknown side 'a' Difficulty: medium 3 7 Find the area of similar triangle Difficulty: medium 3 8 Find the missing side Difficulty: medium 3 9 How far is the lizard from the wall? Difficulty: medium 3 10 Find the value of 'y' Difficulty: medium 3 11 Find the unknown side Difficulty: medium 3 12 Solve for 'x' Difficulty: medium 3 13 Find the unknown measure of the similar triangle Difficulty: medium 3 14 Find the distance Difficulty: hard 4 15 Find the distance between the ships Difficulty: hard 4 16 Find the area Difficulty: hard 4 17 Calculate the length Difficulty: hard 4 18 Find the area of the isosceles right triangle Difficulty: hard 4 19 Determine the third angle of the triangle Difficulty: hard 4 20 Read the figure and prove the statement Difficulty: medium 3

### Tests

 1 Training test I Difficulty: medium 10 2 Training test II Difficulty: medium 10 3 Homework I Difficulty: hard 12

### Teacher manual

 1 Methodical recommendation