Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall. Section 6.1 Angles and Their Measure
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Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Section 6.1
Angles and Their Measure
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Radians
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Find the length of the arc of a circle of radius 4 meters subtended by a central angle of 0.5 radian.
4 0.5 2 meterss
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
(a) 30° (b) 120° (c) – 60° (d) 270° (e) 104 °
0 radian30 radians180
(a) 6
0 radian 20 radians
180 3(b) 12
0 radian0 radians180 3
(c) 6
0 radian 30 radians180 2
(d) 27
0 radian 1.815 radians180
(e) 104
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
5(a) radian (b) radian (c) radians (d) 5 radians3 2 6
180(a) 603
180(b) 90
2
5 180(c) 1506
180(d) 5 286.48
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
Find the area of the sector of a circle of radius 5 feet formed by an angle of 60°. Round the answer to two decimal places.
In order to use the equation for the area of a sector, must be in radians.
60180 3
21 255 13.09 square feet2 3 6
A
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