Algebra 2 CH 9.2 Define General Angles and Use Radian Measure
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure 9.2 Define General Angles and Use Radiant Measure •
initial side
•
terminal side
•
standard position
•
coterminal
•
radian
•
sector
•
central angle
o
converting from radians to degrees and degrees to radians
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
When we use angles with trigonometric functions, we are going to define the angles using a circle.
Define General Angles and Use Radian Measure
135o 45
o
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
225o 315o
1
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
45o 135o
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
45o
360o+45o=405o
360o+30o=390o
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
3
2 1
0.28
4
5
6
2
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure It is 360o around a circle, but it is 2 π radians around a circle.
Define General Angles and Use Radian Measure
To Convert from Degrees to Radians:
Define General Angles and Use Radian Measure Convert 135o to radians.
multiply the degree measurement by
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
To Convert from Radians to Degrees:
Convert π radians to degrees.
multiply the radian measurement by
3
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure Convert π/4 radians to degrees.
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure If you see an angle measurement without the degree symbol, radians are implied. This is three degrees:
3o
This is three radians:
3
Define General Angles and Use Radian Measure 9.2 Define General Angles and Use Radiant Measure •
initial side
•
terminal side
•
standard position
•
coterminal
•
radian
•
sector
•
central angle
o
converting from radians to degrees and degrees to radians
4
Define General Angles and Use Radian Measure 9.2 Define General Angles and Use Radiant Measure •
initial side
•
terminal side
•
standard position
•
coterminal
•
radian
•
sector
•
central angle
o
converting from radians to degrees and degrees to radians
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
When we use angles with trigonometric functions, we are going to define the angles using a circle.
Define General Angles and Use Radian Measure
135o 45
o
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
225o 315o
1
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
45o 135o
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
45o
360o+45o=405o
360o+30o=390o
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
3
2 1
0.28
4
5
6
2
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure It is 360o around a circle, but it is 2 π radians around a circle.
Define General Angles and Use Radian Measure
To Convert from Degrees to Radians:
Define General Angles and Use Radian Measure Convert 135o to radians.
multiply the degree measurement by
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure
To Convert from Radians to Degrees:
Convert π radians to degrees.
multiply the radian measurement by
3
Algebra 2 CH 9.2 Define General Angles and Use Radian Measure.notebook August 30, 2013
Define General Angles and Use Radian Measure Convert π/4 radians to degrees.
Define General Angles and Use Radian Measure
Define General Angles and Use Radian Measure If you see an angle measurement without the degree symbol, radians are implied. This is three degrees:
3o
This is three radians:
3
Define General Angles and Use Radian Measure 9.2 Define General Angles and Use Radiant Measure •
initial side
•
terminal side
•
standard position
•
coterminal
•
radian
•
sector
•
central angle
o
converting from radians to degrees and degrees to radians
4
