Review of radian measure.

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Presentation transcript:

Review of radian measure. 180 degrees = ____ radians = ½ revolution Problem: Suppose a wheel 3 ft in diameter rolls through the angle Pi/3 radians. How far does it roll?

Definition of sine, cosine, and tangent functions Starting at (1,0) on the unit circle and going x radians around the circumference, you come to the point (cos(x), sin(x)) on the unit circle. tan(x) = cos(13Pi/5) = _____ tan(23Pi) =

Graphs of sin, cos, and tan functions

Solving right triangles using sin, cos, and tan Problem: A right triangle has a hypotenuse of 15 ft and one acute angle of 19 degrees. Find its perimeter and area.

Common #5 (Weds)

Common #6 (Weds)

Common #11