Answer and Explanation
Your Answer is
Correct Answer is H
Explanation
Because DF=EF, ∠BDF=∠BEF=90 degrees, and two right triangles share side BF, so the two triangles are congruent. Then ∠x+∠y=∠FBE+∠y=90 degrees.
30. In △ABC below, D, E, and F are points on AB, BC, and AC, respectively, and DF is congruent to EF. What is the sum of the measures of the angles marked x and y ?
