The correct response is:
No, because the angle at point F is 90 degrees.
However, the statement is somewhat misleading because if angle F is 90 degrees, then the triangle is a right triangle, and the Pythagorean theorem does apply. If you meant that there is no angle at point F marked as 90°, then the statement about not being a right triangle would be correct.
To clarify: since the triangle has angles of 30 degrees and 60 degrees, it does not have a right angle (90 degrees). Therefore, the Pythagorean Theorem does not apply to this triangle in the way it would to right triangles.
So the best answer, given the options, would indeed be:
No, because the triangle is not a right triangle.