Respuesta :
In a triangle there is 180 degrees so the three angles should add up to that.
The angles of a quadrilateral is always 360 degrees.
Yes it is possible to have a triangle that is not 180 degrees
No it is not possible.
1. 180 degrees
2.360 degrees
However, I'm not sure of the bottom two questions, mainly cause I've heard of exceptions, but I' not sure if they're true.