No, I know this because a square is not ever a rhombus, a rhombus has acute angels and squares don't.
        
             
        
        
        
1/3 full is your answer. :D
        
             
        
        
        
Answer:
tttttttttttttttttttttttttttttttttt
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Use trig 
Step-by-step explanation:
sin(55) = x/21
x = 21sin(55)
use calculator in degree mode
cos(55) = y/21
21cos(55) = y
 
        
             
        
        
        
Answer:
2.5896
Explanation:
Zero power rule: The zero exponent rule states that any number raised to a power of zero equals one.
10^0 is 1, so nothing changes