Multiple choice general knowledge math & puzzles

Which one of the following cannot be the ratio of angles in a right-angled triangle?

  1. 1:2:3

  2. 1:1:3

  3. 1 : 3 : 6

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In a right-angled triangle, one angle is 90°. In ratio 1:1:3, the angles would be 36°, 36°, 108° (no 90°). In 1:2:3, they are 30°, 60°, 90°. In 1:3:6, they are 18°, 54°, 108°. Both 1:1:3 and 1:3:6 are impossible, but 1:1:3 is the selected distractor.

Keep practicing — related questions