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Theory
Practice Questions
1. 
Determine the interior angle of a triangle
Difficulty: easy 
2

2. 
The exterior angles of polygon
Difficulty: hard 
2

3. 
Calculate the interior angle of a quadrilateral
Difficulty: easy 
3

4. 
Find out the sum of interior angles
Difficulty: easy 
3

5. 
Write the measure of each exterior angle
Difficulty: easy 
3

6. 
Estimate the exterior angle of atriangle
Difficulty: medium 
3

7. 
Match the formula and solve the problems based on interior and exterior angle property
Difficulty: medium 
4

8. 
Evaluate the unknown angle of a quadrilateral
Difficulty: medium 
4

9. 
Determine the interior angle and number of sides of polygon
Difficulty: medium 
4

10. 
Calculate the unknown value
Difficulty: medium 
1

11. 
Solve and find the angles
Difficulty: hard 
5

12. 
Find unknown angle and verify angle sum property of the provided polygon
Difficulty: hard 
5

13. 
Estimate the unknown value
Difficulty: hard 
5

Tests
1. 
Training test
Difficulty: medium 
9
