Define the term “Radian”.
Radian is a pure measure based on the radius of the circle. Angle made when the radius is wrapped around a circle.
What is the symbol used to measure radians?
π (pi symbol), for example 1π radian
How much degrees is 1π radian?
180 degrees
What is 360 degrees in radians?
2π radian (180 x 2 = π x 2)
How much pi radian is 1 cycle (1 complete wave)?
2π radian (360 degrees)