A_{lune 1}

A_{lune 2}

A = (-0.3512270803949213, -2.0393229901269403)
B = (7.745980253878705, -2.063638928067702)
a_2 = Line(A, B)
b_2 = OrthogonalLine(A, a_2)
C = Point(b_2)
c = Segment(C, B)
poly1, a, b, a_1 = Polygon(C, A, B)
d = Semicircle(A, C)
e = Semicircle(B, A)
f = Semicircle(C, B)
C' = Mirror(C, c)
B' = Mirror(B, c)
f' = Semicircle(B', C')
g = Segment(C, B)
text2: "Area_a=" + (3.141592653589793 * (a / 2.0)^(2.0) / 2.0)
text3: "Area_b=" + (3.141592653589793 * (b / 2.0)^(2.0) / 2.0)
text1: "Area_c=" + (3.141592653589793 * (a_1 / 2.0)^(2.0) / 2.0)
Textpoly1: "Area_{Triangle} = " + poly1
text4: "Area_c=Area_a+ Area_b=" + (3.141592653589793 * (a_1 / 2.0)^(2.0) / 2.0)