GeometryDifficulty 2.0JuniorFind the answerUnited Kingdom
Going clockwise around a quadrilateral, its interior angles are in the ratio 6:7:8:9. Which of the following is a true statement about the quadrilateral?
(A) It has a right angle (B) It is a trapezium (C) It is a parallelogram (D) It is a kite (E) It is cyclic
Want a route through all this instead of an archive? The track
puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.