D, because it is the only one that contains multiples. All others contain factors.
If you have any doubts plz let me know.
        
             
        
        
        
Answer: D
Two sides are equal all angles smaller than. Right angle makes them acute
Step-by-step explanation:
 
        
                    
             
        
        
        
16, with the factors– 1, 2, 4, 8, and 16 itself
        
             
        
        
        
Answer:
176
Step-by-step explanation:
11x11=121
12x11=132
9=20-11
16-9=7
11x16=176
Hope this helped you :D
And pls give me brainlist if you can