Which of the statements about the picture below are true? Choose all that apply.

Question

Triangle A B C is shown with point F in the interior of the triangle.

Answer 1

A. The measure of angle A is 90 degrees.
B. The measure of angle B is 90 degrees.
C. The measure of angle C is 90 degrees.
D. The measure of angle F is 90 degrees.

A, B, and C.