SME
Grade 11 Math
The unit circle and radian measure
The main lesson, then each kind of problem it solves.
The unit circle and radian measure
Main lesson
Degrees and radians
Use this for “Convert 225° to radians” or “Convert 7π/6 to degrees.”
Coterminal and reference angles
Use this for “Find the coterminal angle of −495° from 0° to 360°, its quadrant and its reference angle.”
A point on the terminal side
Use this for “(−3, 4) is on the terminal side of θ. Find sin θ, cos θ and tan θ.”