The answer is 14. The two lower angles are 50 each 100 total and so the top angle must equal 80. If you set it equal to 80 you get 14.
 
        
             
        
        
        
What you have to do is take the cube root of eight and 1000 and get your answer. The answer would be 2/10.
        
             
        
        
        
12 can only go into 30 about 25 whole times.
        
             
        
        
        
Answer:
The first one
Step-by-step explanation: