Theory
Exercises
1. 
Calculate sum of interior angles and perimeter of equilateral triangle
Difficulty: easy 
3

2. 
Calculate the interior angle of isosceles triangle
Difficulty: easy 
2

3. 
Select the following relation which is true.
Difficulty: easy 
3

4. 
Determine the angle in isosceles triangle
Difficulty: easy 
3

5. 
Find the angle of isosceles triangle
Difficulty: medium 
3

6. 
Estimate the interior angle of a triangle
Difficulty: medium 
4

7. 
Determine the side of the right triangle
Difficulty: medium 
4

8. 
Evaluate the base of an isosceles triangle
Difficulty: medium 
4

9. 
Calculate the distance travelled
Difficulty: medium 
4

10. 
Solve the problem on isosceles triangles
Difficulty: hard 
5

11. 
Calculate the perimeter of the rectangle
Difficulty: hard 
5

12. 
Predict the width of the rectangular object
Difficulty: hard 
4

Tests
1. 
Training test
Difficulty: medium 
10
