1. copyright@Ed2netLearning,Inc1 ANGLES GRADE 3

2. copyright@Ed2netLearning,Inc2 Hello, How are you doing? Today, we are going to start a new lesson on Angles.

3. copyright@Ed2netLearning,Inc3 Angle Angle is defined as the figure formed when two rays or lines meet at the same point.

4. copyright@Ed2netLearning,Inc4 Different type of angles Different type of angles-  Right angle  Acute angle  Obtuse angle  Straight angle

5. copyright@Ed2netLearning,Inc5 Right angle Right angle – An angle that forms a square corner. Right angle symbol

6. copyright@Ed2netLearning,Inc6 Acute angle Acute angle –An angle that is less than right angle.

7. copyright@Ed2netLearning,Inc7 Obtuse Angle Obtuse Angle – An angle that is greater than right angle.

8. copyright@Ed2netLearning,Inc8 What is the angle formed at the point A in the figure given below? Answer- Right angle A

9. copyright@Ed2netLearning,Inc9 Straight angle Straight Angle - An angle formed by a straight line.

10. copyright@Ed2netLearning,Inc10 Important Tip Perpendicular Lines always form Right angle.

11. copyright@Ed2netLearning,Inc11 Name the angle formed by a line segment. Answer- straight angle

12. copyright@Ed2netLearning,Inc12 How many angles greater than 90° are in the word FAME? Answer – 2 (in alphabet A)

13. copyright@Ed2netLearning,Inc13 Which letter is made up of two right angles? a) W b) D c) L d) T

14. copyright@Ed2netLearning,Inc14 Draw the following angles. a) Right Angle b) An angle less than 90° A B

15. copyright@Ed2netLearning,Inc15 ASSESSMENT

16. copyright@Ed2netLearning,Inc16 1.Name the angles greater than 90° in the figure given below. Answer – 2 and 4 1 2 5 4 3

17. copyright@Ed2netLearning,Inc17 2.Name the angles that are 90° in the figure given in Question No 1. Answer – 1 and 5

18. copyright@Ed2netLearning,Inc18 3.Match the following. Angle formed by alphabet V Right angle Angle formed when clock shows 4 O’clock Acute angle Angles formed by alphabet H Obtuse angle

19. copyright@Ed2netLearning,Inc19 4.Name the angle formed by the letter L of the English alphabet. Answer – Right angle

20. copyright@Ed2netLearning,Inc20 5.How many angles are 90° in the figure given below? Answer - 2

21. copyright@Ed2netLearning,Inc21 6.Name all the angles formed in the figure given below. Answer- acute angle, obtuse angle, right angle

22. copyright@Ed2netLearning,Inc22 7.Name the angles formed by the figure given below. Answer – acute angle and obtuse angle

23. copyright@Ed2netLearning,Inc23 8.Name the angle formed when clock shows 3 O’clock? Answer- right angle

24. copyright@Ed2netLearning,Inc24 9.What kind of angle is formed by the figure given below? Answer – acute and obtuse angle

25. copyright@Ed2netLearning,Inc25 10.Decide whether angle is acute, obtuse or right in the figure given below. Answer – obtuse angle

26. copyright@Ed2netLearning,Inc26 Recap Angles  Acute angle  Obtuse angle  Right angle  Straight angle Solved examples Practice problems

27. copyright@Ed2netLearning,Inc27 Good Work! Now Practice worksheets on the lesson.