Asked by Alfa

Indirect proof given triangle ABC,<B is an obtuse angle prove there can only be one obtuse angle in triangle.
Answered by drwls
Obtuse angles are greater than 90 degrees.
The sum of all angles in a triangle must be 180 degrees. You can't have two of them > 90 and have a total of 180.

Another indirect proof: try drawing one.
Answered by ashana
yes
There are no AI answers yet. The ability to request AI answers is coming soon!