Grade Homework HW 13.2A Answers

13.2B General Angles and Radian Measure Objective Students will be able to draw the terminal side of an angle in standard form given a radian measure. Students will be able to determine co-terminal angles given a radian measure

6.1 Radian and Degree Measure Radian Measure A second way to measure angles is in radians. Definition of Radian: One radian is the measure of a central angle  that intercepts arc s equal in length to the radius r of the circle. In general,

6.1 Radian and Degree Measure Radian Measure

6.1 Radian and Degree Measure Radian Measure

6.1 Radian and Degree Measure Conversions Between Degrees and Radians To convert degrees to radians, multiply degrees by To convert radians to degrees, multiply radians by

Ex 5. Convert the degrees to radian measure. 60 b) -54 c) 45

PRACTICE Convert the degrees to radian measure. YOU TRY!

Ex 6. Convert the radians to degrees. a) b)

Ex 6. Convert the radians to degrees. YOU TRY! c) d)

Degree and Radian Form of “Special” Angles 0°  360 °  30 °  45 °  60 °  330 °  315 °  300 °   120 °  135 °  150 °  240 °  225 °  210 °  180 ° 90 °  270 °   Degree and Radian Form of “Special” Angles

Ex 7. Find one positive and one negative angle that is coterminal with the angle  = in standard position.

Ex 8. Find one positive and one negative angle that is coterminal with the angle  = in standard position.

YOU TRY! Find one postive angle and one negative angle in standard position that are coterminal with the given angle.

Algebra 2 Homework: 13.2B 1. In your own words, describe what a radian is.