$\large{%n}$

$\large{%n}$

$\large{%n}$

$\large{%n}$

$\large{%n}$

$\large{%n}$

$\large{%n}$

y=ax^\red{2}+bx+c

D = (6.04, 7.3)
F = (8.02, 5.72)
A = (8.64, 11.46)
B = (3.54, 3.36)
C = (14.9, 3.08)
t1, c, a, b = Polygon(A, B, C)
f = AngularBisector(B, A, C)
g = AngularBisector(A, C, B)
E = Intersect(g, f)
h = OrthogonalLine(E, a)
G = Intersect(h, a)
d = Circle(E, G)
i = Segment(B, E)
j = Segment(E, C)
k = Segment(E, A)
α = Angle(A, C, E)
β = Angle(E, C, B)
γ = Angle(B, A, E)
δ = Angle(E, A, C)
l = Segment(E, G)
ε = Angle(E, G, C)
ζ = Angle(A, B, E)
η = Angle(E, B, C)

Tool: 内切圆
内切圆[ <点>, <点>, <点> ]
Input: A, B, C
Output: d

t1, c, a, b = Polygon(A, B, C)
f = AngularBisector(B, A, C)
g = AngularBisector(A, C, B)
E = Intersect(g, f)
h = OrthogonalLine(E, a)
G = Intersect(h, a)
d = Circle(E, G)