和角公式一題
Author: 高一忠郭于瑄

θ

60°-θ

 \frac{ 11 }{ 2} 

1

和角公式一題

l

A = (-0.25446063348310477, -0.9669617006224336)
a: y = y(A)
B: A + (0.0, 5.5)
C: B + (0.0, 1.0)
b: y = y(B)
c: y = y(C)
D = Point(b)
E = Point(a)
F = Point(c)
d = Segment(D, E)
e = Segment(F, E)
f = Segment(D, F)
g = Circle(D, E)
h = Circle(D, F)
k = Circle(F, E)
p = Circle(F, D)
G = Point(f)
H = Point(b)
I = Point(b)
J = Point(d)
K = Point(c)
i = OrthogonalLine(K, b)
L = Intersect(b, i)
M = Intersect(a, i)
v = Vector(M, L)
N = Intersect(c, i)
O = Point(b)
P = Intersect(c, i)
Q = Point(b)
n = 0 (slider from 0 to 6, step 1)
R = (3.800959479722741, -1.1659593728389113)
S = Point(b)
t = Circle(D, 3.0)
T = Intersect(t, f)
U, V = Intersect(t, b)
q = Semicircle(T, V)
r = Circle(D, 1.0)
W, Z = Intersect(r, b)
A_1 = Intersect(r, d)
c_1 = Semicircle(Z, A_1)
u: c
l = Vector(M, L)
m = Vector(L, M)
j = Vector(P, Q)
s = Vector(Q, P)
d_1 = CircleArc(F, D, E)