Practice and Problem-Solving Exercises

A Practice

See Problem 1.

Name each shaded angle in three different ways.

See Problem 2.

Use the diagram below. Find the measure of each angle. Then classify the angle as acute, right, obtuse, or straight.

9. ∠ EAF angle
10. ∠ DAF angle
11. ∠ BAE angle
12. ∠ BAC angle
13. ∠ CAE angle
14. ∠ DAE angle

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Draw a figure that fits each description.

15. an obtuse angle, ∠ RST angle
16. an acute angle, ∠ GHJ angle
17. a straight angle, ∠ KLM angle

See Problem 3.

Use the diagram below. Complete each statement.

18. ∠ CBJ ≅ □ angle
19. ∠ FJH ≅ □ angle
20. If m ∠ EFD = 75 , m angle  then m ∠ JAB = □ . m angle
21. If m ∠ GHF = 130 , m angle  then m ∠ JBC = □ . m angle

    
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