Loading...
Defining radians and converting to and from degrees.
Using s = rθ and sector perimeters.
A = ½r²θ and segment areas.
Trig equations with intervals and answers in radians.
sin θ ≈ θ, tan θ ≈ θ, cos θ ≈ 1 − θ²/2.
Work through each topic to complete the section.