I think it would be 35 combinations but I may be wrong
        
             
        
        
        
Answer:
D
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°, that is
∠ 1 + ∠ 2 + ∠ 3 = 180°
Given ∠ 1 + ∠ 2 = 134°, then
134° + ∠ 3 = 180° ( subtract 134° from 180° )
∠ 3 = 46° → D
 
        
             
        
        
        
So what you need to do is find the volume and divide it by 2.
        
                    
             
        
        
        
I can’t quite see the question. Mind taking a picture of it closer?