1 radian

R

2 radian

3 radian

180° = π radian

0 radian = 0°

تعريف الراديان : هو قيس قوس من دائرة طوله يساوي نصف قطر الدائرة

O = Intersect(xAxis, yAxis)
A = Point(xAxis)
حرك = 1.577 (slider from 0 to 6.28318531, step 0.0010)
c = Circle(O, A)
b = Segment(O, A)
M = Rotate(A, حرك, O)
R = Segment(O, M)
α = Angle(A, O, M)
B = Midpoint(O, M)
C = Point(c)
D = Point(c)
E = Point(c)
d = Segment(O, C)
e = Segment(O, D)
f = Segment(O, E)
β = Angle(A, O, C)
γ = Angle(A, O, D)
δ = Angle(A, O, E)
A' = Mirror(A, O)
g = Segment(O, A')
h = CircleArc(O, A, C)
k = CircleArc(O, C, D)
p = CircleArc(O, D, E)
q = CircleArc(O, E, A')
r = CircleArc(O, A, M)