Question 27
Triangle ABC is isosceles at B, with altitudes AH and CP. Given AC=2 HP, what is ∠ABC?
Original options (preserved):
A. 30°
B. 45°
C. 60°
D. 75°
E. 90°
Editorial note: Consider altitude feet on side extensions as well as on the side segments; state which conditions make an angle unique. The rubric is editorial.

Original options (preserved):
A. 30°
B. 45°
C. 60°
D. 75°
E. 90°
Editorial note: Consider altitude feet on side extensions as well as on the side segments; state which conditions make an angle unique. The rubric is editorial.
