Tam giác ABC là tam giác vuông

Tam giác DEF là tam giác tù

Tam giác HIK là tam giác nhọn

A = (0.52, -1.78)
B_1 = (6.34, -1.84)
a = Ray(A, B_1)
A' = Rotate(A, 62.0*°, A)
B' = Rotate(B_1, 62.0*°, A)
a' = Ray(A', B')
C = Point(a)
A'_1 = Rotate(A, 332.00000000000006*°, C)
B'_1 = Rotate(B_1, 332.00000000000006*°, C)
a'_1 = Ray(A'_1, B'_1)
B = Intersect(a', a'_1)
b = Segment(A, B)
c = Segment(C, A)
d = Segment(C, B)
α = Angle(C, A, B)
β = Angle(B, C, A)
D = (-0.10185110846137979, -6.936072853380507)
E = (12.02, -7.0600000000000005)
e = Line(D, E)
e' = Rotate(e, 45.0*°, D)
F = Point(e)
e'_1 = Rotate(e, 323.0*°, F)
G = Intersect(e', e'_1)
f = Segment(D, F)
g = Segment(G, F)
h = Segment(G, D)
γ = Angle(F, D, G)
δ = Angle(G, F, D)
I = (10.001702429348196, -2.2107799309120915)
K = (17.042289194102025, -2.2855472239891244)
i = Segment(I, K)
I' = Rotate(K, 62.0*°, I)
ε = Angle(K, I, I')
j = Ray(I, I')
H' = Rotate(I, 322.00000000000006*°, K)
ζ = Angle(H', K, I)
k = Ray(K, H')
H = Intersect(j, k)
l = Segment(H, I)
m = Segment(H, K)