InterviewSolution
Saved Bookmarks
| 1. |
The sides of triangle ABC satisfy the relations `a + b - c= 2 and 2ab -c^(2) =4`, then the square of the area of triangle is ______ |
|
Answer» Correct Answer - 3 `a + b - c = 2` and `2ab - c^(2) = 4` `rArr a^(2) + b^(2) + c^(2) + 2ab - 2bc - 2ca = 4 = 2ab -c^(2)` `rArr (b-c)^(2) + (a-c)^(2) = 0` `rArr a = b = c` Triangle is equilateral, hence `a = 2` `rArr Delta = sqrt3` |
|