InterviewSolution
Saved Bookmarks
| 1. |
If angles of a triangle are in a ratio of 2 : 3 : 4, then find the greatest angle.1. 60°2. 80°3. 90°4. 120° |
|
Answer» Correct Answer - Option 2 : 80° Given : The ratio of angles of triangle = 2 : 3 : 4 Concept used : Sum of all angles of a triangle = 180° Solution : Let the first angle be 2x The second angle = 3x The third angle = 4x 2x + 3x + 4x = 180° ⇒ 9x = 180° ⇒ x = 20° ∵ The greatest angle = 4x ⇒ The greatest angle = 4 × 20° ∴ The greatest angle is 80° |
|