The document appears to be classroom exercises on identifying and estimating angles. It includes questions asking students to name the vertex and sides of angles, classify angles as acute, right, obtuse or straight, and estimate the measure of angles. There are also questions about angle pairs, angle bisectors, and collinear points.

1. P. 20 Classroom Ex. 7 6 5 4 3 2 1 Name the vertex and the side of each angle.

2. P. 20 Classroom Ex. 7 6 5 4 3 2 1 Name the vertex and the side of each angle.

3. P. 20 Classroom Ex. 7 6 5 4 3 2 1 Name the vertex and the side of each angle.

4. 7 6 5 4 3 2 1 Acute 40 0 Almost half way to 90 State whether the angle appears to be acute, right, obtuse or straight. Then estimate the angle.

5. 7 6 5 4 3 2 1 Acute 40 0 Almost half way to 90 Right 90 0 State whether the angle appears to be acute, right, obtuse or straight. Then estimate the angle.

6. 7 6 5 4 3 2 1 Obtuse 135 0 90 + half 90 State whether the angle appears to be acute, right, obtuse or straight. Then estimate the angle.

7. 7 6 5 4 3 2 1 Obtuse 135 0 90 + half 90 Right 90 0 Box indicates 90 0 State whether the angle appears to be acute, right, obtuse or straight. Then estimate the angle.

8. 7 6 5 4 3 2 1 Obtuse 110 0 90 + half 20 State whether the angle appears to be acute, right, obtuse or straight. Then estimate the angle.

9. 7 6 5 4 3 2 1 State whether the angle appears to be acute, right, obtuse or straight. Then estimate the angle. Obtuse 110 0 90 + half 20 Straight 180 0

10. 7 6 5 4 3 2 1 Complete EDB

11. 7 6 5 4 3 2 1 Complete EDB CDA

12. 7 6 5 4 3 2 1 Complete EDB EDB CDA 180 0

13. 7 6 5 4 3 2 1 Complete EDB EDB CDA 180 0 6 5

14. 90 120 160 20 State the measure of each angle.

15. 90 120 160 20 State the measure of each angle.

16. 90 120 160 20 23 Name 4 angles adjacent to

17. 90 120 160 20 24 What ray bisects two angles?

18. 90 120 160 20 25 Name a pair of congruent angles that are… Acute Right Obtuse

19. Q26 Study the corner of the room where two walls and the ceiling meet. How many right angles do you see? Q27 Draw an angle AOB on a piece of paper. Fold the paper so that ray OA falls on ray OB. Lay the paper flat and call the fold line OK. 3 It is an angle bisector.

20. Given the diagram, state whether you can reach the conclusion shown. Yes, Given No, not given 90 0 Yes, Given straight line. No, not given =

21. 34. Points E, O, and F are collinear. Yes, 180 – 50 = 130 No, not given 90 0 Yes, Given

22. 35. Point C is in the interior of Yes, Given

23. 35. Point C is in the interior of Yes, Given No the first angle is inside the second.

24. 35. Point C is in the interior of Yes, Given No the first angle is inside the second. Yes, Given Yes, They share the same end point and are on the same line.

25. C’est fini. Good day and good luck.