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

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Presentation on theme: "Solving a Right Triangle Given 2 Sides Warm-Up. Solving a Right Triangle Given 2 Sides =12  22.62 m  A + m  B = 90 m  A + 22.62 =90 m  A  67.38."— Presentation transcript:

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


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