Scripting
size = 6
Ax = Slider(-size, size, 0.01, 1, 200, false, true, false, false)
Ay = Slider(-size, size, 0.01, 1, 200, false, true, false, false)
Bx = Slider(-size, size, 0.01, 1, 200, false, true, false, false)
By = Slider(-size, size, 0.01, 1, 200, false, true, false, false)
Cx = Slider(-size, size, 0.01, 1, 200, false, true, false, false)
Cy = Slider(-size, size, 0.01, 1, 200, false, true, false, false)
SetVisibleInView(Ax, 1, false)
SetVisibleInView(Ay, 1, false)
SetVisibleInView(Bx, 1, false)
SetVisibleInView(By, 1, false)
SetVisibleInView(Cx, 1, false)
SetVisibleInView(Cy, 1, false)
SetValue(Ax, RandomUniform(-size, size))
SetValue(Ay, RandomUniform(-size, size))
SetValue(Bx, RandomUniform(-size, size))
SetValue(By, RandomUniform(-size, size))
SetValue(Cx, RandomUniform(-size, size))
SetValue(Cy, RandomUniform(-size, size))
A = (Ax, Ay)
B = (Bx, By)
C = (Cx, Cy)
triangle = Polygon(A, B, C)