InterviewSolution
Saved Bookmarks
| 1. |
If the angles of a triangle are in the ratio `4:1:1,`then the ratio of the longest side to the perimeter isA. `sqrt3 : (2 + sqrt3)`B. `1 : 6`C. `1 : 2 + sqrt3`D. `2 : 3` |
|
Answer» Correct Answer - A Given that `4A + A + A = 180^(@)` or `A = 30^(@)` Angle are `120^(@), 30^(@), 30^(@)` `rArr (sin 120^(@))/(a) - (sin 30^(@))/(b) = (sin 30^(@))/(c) = 2R` (say) `rArr (a)/(a + b + c) = (sin 120^(@))/(sin 120^(@) + sin 30^(@) + sin 30^(@)) = (sqrt3)/(2 + sqrt3)` |
|