C-11-Q110mediumsingle_mcqThe ratio of three angles of a triangle is 3:4:53:4:53:4:5. The angles in degrees are—a30°,60°,90°30°, 60°, 90°30°,60°,90°b45°,60°,75°45°, 60°, 75°45°,60°,75°c36°,72°,72°36°, 72°, 72°36°,72°,72°d40°,60°,80°40°, 60°, 80°40°,60°,80°