Question

ABC is right at B. If   1 sin , 2 A C  then the angles A, B, C reprectively are [ ] a) 60°, 90°, 30° b) 30°, 90°, 60° c) 80°, 30°, 70° d) 45°, 90°, 45°

Answer 1

Answer:

your question has some mistakes. first correct the question.