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1. Opener a) Evaluate: for b = -3 b) Simplify: c) Simplify:

Basic Angles and Poolroom Math. 1. Opener a) Evaluate: for b = -3 b) Simplify: c) Simplify: d) What is the most requested main meal?. Quote of the Day. Inspiration is needed in geometry, just as much as in poetry. ALEKSANDR PUSHKIN. ANGLES. E. F. 1. D.

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1. Opener a) Evaluate: for b = -3 b) Simplify: c) Simplify:

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  1. Basic Angles and Poolroom Math 1. Opener a) Evaluate: for b = -3 b) Simplify: c) Simplify: d) What is the most requested main meal?

  2. Quote of the Day Inspiration is needed in geometry, just as much as in poetry. ALEKSANDR PUSHKIN

  3. ANGLES

  4. E F 1 D 2. Notes - Basic Angles Point F – VERTEX of the angle Vertex: The common endpoint of the two rays of an angle.

  5. EFD DFE F 1 E F 1 D 2. Notes - Basic Angles What We Can Write Vertex: The common endpoint of the two rays of an angle.

  6. C DFC DFE EFD EFC 1 CFD F 2 CFE E 1 2 F D 2. Notes - Basic Angles What We Can Write What We Can’t Write

  7. EXAMPLE A Name all the angles in these drawings. Which angle seems big to you? Which seems small?

  8. 2. Notes - Basic Angles E F D

  9. 2 . Notes - Basic Angles F D E

  10. 3 . Notes – Types of Angles Right Angles • Angles with one corner equal to 90 degrees • It doesn’t matter which way the corner is facing

  11. 3 . Notes – Types of Angles Acute Angles • Angles with one corner less than 90 degrees • It doesn’t matter which way the corner is facing

  12. 3 . Notes – Types of Angles Obtuse Angles • Angles with one corner greater than 90 degrees • It also doesn’t matter which way the corner is facing

  13. But don’t get stressed out.Here are a few ways to remember which angle is which. • The letter “a” comes before the letter “o” in the alphabet. “a” for acute, represents a smaller angle (less than 90 degrees) than “o” for obtuse (an angle greater than 90 degrees) • The letter “r” for right triangle, represents an angle that can sit up right with one line straight out connected to another line straight up

  14. 4. Notation To show the measure of an angle, use an m before the angle symbol. For example, means the measure of is 34 degrees.

  15. 5. Notation

  16. EXAMPLE B

  17. 2.1 Angle Measuring • Work with a partner

  18. 6. Virtual Pool

  19. STEP 1 Use your protractor to find the measure of 1. Which is the correct outgoing angle? Which point—A or B—will the ball hit?

  20. STEP 2 Which point on the cushion—W, X, or Y—should the white ball hit so that the ray of the outgoing angle passes through the center of the 8-ball?

  21. STEP 3 How would you hit the white ball against the cushion so that the ball passes over the same spot on the way back?

  22. STEP 4 How would you hit the ball so that it bounces off three different points on the cushions without ever touching cushion ?

  23. 7. EXIT SLIP • Name each angle three different ways.

  24. 4. Homework - all questions no exceptions LESSON 1.4: 12; 29-32; 42-43; 79; 83-84 2.2 Poolroom Math Worksheet completed

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