$斜邊$

$對邊$

$鄰邊$

$θ$

$ A $

$ B $

$ C $

$ 直角三角形的定義 $

$ 斜邊 $

$  對邊$

$ 鄰邊 $

O = (3.98, 1.56)
A = (8.52, -0.78)
c_1 = Circle(O, A)
C = Point(c_1)
B = Mirror(C, O)
a = Segment(C, B)
b = Segment(A, B)
c = Segment(A, C)
α = Angle(C, A, B)
tri, c_2, a_1, b_1 = Polygon(A, B, C)
θ = Angle(A, C, B)
G: 1 / 3 * (A + B + C)
u = Vector(G, A)
v = Vector(G, B)
w = Vector(G, C)
D = Midpoint(B, A)
E = Midpoint(B, C)
F = Midpoint(C, A)
z = Vector(G, D)
d = Vector(G, E)
e = Vector(G, F)