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1 Section 7.1 Angles and Their Measure Angle – __________________________

Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

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Page 1: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

1

Section 7.1

Angles and Their Measure

Angle – __________________________

Page 2: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

2

Standard Position – ___________________

___________________

Quadrants – _________________________

_________________________

Quadrantal angle – ___________________

____________________

Page 3: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

3

Angle Measures

Page 4: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

4

(4 decimal places)

Radians

_________________________________________ _________________________________________ _________________________________________

________________________________

Page 5: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

5

Find the length of the arc of a circle of radius 4 meters

subtended by a central angle of 0.5 radian.

Page 6: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

6

360o

1

Page 7: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

7

Page 8: Section 7.1 Angles and Their Measure 142 section 7-1 notes.pdfRadians Degrees Radians 300 2100 777 450 2250 577 600 2400 477 900 2700 377 1200 277 3000 577 1350 37 3150 77 1 500 577

8

Find the area of the sector of a circle of radius 5 feet formed

by an angle of 40 . Round the answer to two decimal places.