I was trying to draw Dandelin spheres using an ellipse. Then, I had to construct an ellipse that is tangent to two lines and passes two given points on the angle bisector of the two lines.
I attempted to draw a two-line tangent ellipse and dilate it to the points given.
But it didn't work, like below:
Now, how should I deal with it..?
BTW, this is my current progress with drawing the Dandelin spheres.
