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Theory
Exercises
1. 
Find the area of rhombus
Difficulty: easy 
1

2. 
Determine the area of rhombus
Difficulty: easy 
1

3. 
Determine the length of the other diagonal
Difficulty: medium 
2

4. 
Determine the cost of aluminium foil used in sweet
Difficulty: medium 
2

5. 
Find the unknown value
Difficulty: medium 
2

6. 
Find the area of flower garden
Difficulty: hard 
3

7. 
Find the cost of levelling of a field
Difficulty: hard 
4

8. 
Find the cost of polishing the floor
Difficulty: hard 
3

Tests
1. 
Training test
Difficulty: medium 
3
