How would I classify a triangle only given the degrees?

45, 45, 90 is a right angle.
12, 108, 59 cannot form a triangle.

But what about:
111, 34, 135
and:
26, 65, 89

One of these triangles is a obtuse angle and one is acute.

Question

How would I classify a triangle only given the degrees? 

45, 45, 90 is a right angle. 
12, 108, 59 cannot form a triangle.

But what about:
111, 34, 135 
and:
26, 65, 89

One of these triangles is a obtuse angle and one is acute.

campbell_st · Answer

45, 45, 90 is a right isosceles 

is not a triangle angle sum needed is 180 and the angle sum is 179

111 + 34 + 135 = 280  greater than 180 so not a triangle... 

a triangle can only have 1 obtuse angle

26 + 65 + 89 = 180 so it is a triangle with all angles less than 90 so its an acute angle triangle