The correct response is:
No, because the triangle is not a right triangle.
To explain, the Pythagorean Theorem applies specifically to right triangles, where one of the angles is exactly 90 degrees. In this case, angles E and D measure 60 degrees and 30 degrees, respectively, which means that angle F must be 90 degrees (since the sum of angles in a triangle is 180 degrees). Therefore, this triangle does indeed have a right angle at point F, and the Pythagorean Theorem is applicable.
So, in this situation, it would actually be correct to say:
Yes, because it is a right triangle.
It seems there's a contradiction in your choices, as the triangle described has a right angle.