Author: Created by Mr Lafferty@mathsrevision.com
Date: 29 March 2013

Angle in a Semi-Circle

A = Intersect(xAxis, yAxis)
B = (2.9, 0.72)
c = Circle(A, B)
a = Segment(B, A)
b = Line(B, a)
C = Intersect(c, b, 2)
d = Segment(B, C)
D = (-0.3209293562275163, 4.614375154330419)
e = Segment(C, D)
f = Segment(D, B)
α = Angle(C, D, B)
E = (10.28, 0.08)
F = (12.74, 1.78)
g = Circle(E, F)
h = Line(E, F)
G = Intersect(g, h, 2)
i = Segment(F, G)
H = Point(g)
j = Segment(G, H)
k = Segment(H, F)
δ = Angle(F, H, G)