Answer:
140°
Step-by-step explanation:
The other angle inside is 40 so 180-40 is 140°
 
        
                    
             
        
        
        
Answer:

<h3>4th answer is correct</h3>
Step-by-step explanation:

 
        
             
        
        
        
We have 2x + 4x + 5x = 33 so 11x = 33 and x 3.
The children are 6, 12 and 15
        
             
        
        
        
Answer:B
Step-by-step explanation: