1. Solving a Right Triangle Given 2 Sides Warm-Up

2. Solving a Right Triangle Given 2 Sides =12  22.62 m  A + m  B = 90 m  A + 22.62 =90 m  A  67.38

3. CA SAT 9 STANDARDS: 29.0 29.0 Find the area of a closed figure within a closed figure. 40.0. Identify the results of an algorithm. Agenda:05/11/10 1.) Warm-up 2.) Questions: WS Lesson 13.1 C 3.) Lesson 13.2: General Angels and Radian Measure 4.) Class/Homework WS Lesson 13.2 A & B 5.) Groups of 4 - STAY ON TASK!! 6.) Quiz: 13.1 – 13.2 Friday 5/14/10 Learning Objectives: (1) Angels in Standard Position (2) Arc Length & Areas of Sectors

4. Objective- To measure angles in standard position using degree and radian measure. x y initial side terminal side vertex

5. Draw an angle with the given measure in standard position. Tell which quadrant the terminal side lies. x y Quadrant III

6. Draw an angle with the given measure in standard position. Tell which quadrant the terminal side lies. x y Quadrant II

7. Draw an angle with the given measure in standard position. Tell which quadrant the terminal side lies. x y Quadrant IV

8. Draw an angle with the given measure in standard position. Tell which quadrant the terminal side lies. x y Quadrant II

9. Radian Measure Another way to measure angles. x y r 1 radian r

10. Radian Measure x y

11. To rewrite a degree measure in radians, multiply by CONVERSIONS BETWEEN DEGREES AND RADIANS л radians 180° л radians To rewrite a radian measure in degrees, multiply by Converting Degrees to Radian Measure

12. Converting Radians to Degree Measure To rewrite a degree measure in radians, multiply by CONVERSIONS BETWEEN DEGREES AND RADIANS л radians 180° л radians To rewrite a radian measure in degrees, multiply by

13. Arc Length and Area of a Sector r arc length s central angle The arc length s and area A of a sector with radius r and central angle θ (measured in radians) are as follows:

14. Find the arc length and area of the sector. 10 cm

15. Find the arc length and area of the sector. 10 cm