# Test for and

Substituting in the values found earlier for the case of and

Since

The distance from focal point 1 is:

This is the radius from focal point 1, which is to be expected since the y component is equal to zero for

The focii are located at

This implies that with respect to the origin, x', we find

This is verified with CED

Since the x' dimension is the hypotenuse in a right triangle of 65 degrees