We cant Answer it because the amount of cards presented is incorrect
        
             
        
        
        
The only shape that has that much is a decagon 10 sides. t<span>he </span>sum<span> of the interior </span>angles of a  Regular Decagon is 1440 degrees. 
        
                    
             
        
        
        
Answer:
264
Step-by-step explanation:
well you could have just used a calculator!
 
        
                    
             
        
        
        
Answer:
11x + 8 +8x +12 =27  (drop the parenthesis, there's no actual need for them)
19x +20 =27 (i combined like terms and then subtracted 20 from both sides)
19x = 7  (divide both sides by 19 to get x alone) 
x= 7/19 or 0.36842105 (the answer) 
Step-by-step explanation: