A = (-16.150644518722476, 19.210847789191615)
B = (41.13499102994387, 9.185861568175014)
C = (-21.497303836598, -21.175525272618113)
t1, c, a, b = Polygon(A, B, C)
f = AngularBisector(A, B, C)

Tool: inner∆ (command inner)
select your triangle's vertices
Input: A, B, C
Output: E, F, G, d, t2

t1, c, a, b = Polygon(A, B, C)
f = AngularBisector(A, B, C)
g = AngularBisector(C, A, B)
D = Intersect(f, g)
h = OrthogonalLine(D, c)
E = Intersect(h, c)
d = Circle(D, E)
F = Intersect(d, a, 1)
G = Intersect(d, b, 1)
t2, g_1, e, f_1 = Polygon(E, F, G)