Answer:56.9
Step-by-step explanation:
easy
 
        
             
        
        
        
Well pie is 3.14 etc.
And the way to find that out is by:
~Using the formula.
~To find out what the circumference is you have to use this formula<span> 
C= π*d =2*π*r
</span>~Pi<span> equals a circle's circumference divided by its diameter. 
</span>~If you plug in the numbers in a calculator the numbers should be 3.14.
        
                    
             
        
        
        
the answer for this would be the last one. two rays that meet at a end point.
hope this helps!
 
        
                    
             
        
        
        
Answer:
44
Step-by-step explanation:
We can solve the equation by simplifying it.
 , let's square both sides.
, let's square both sides.
 . Now lets subtract 5 from both sides.
. Now lets subtract 5 from both sides.
 .
.
Hope this helped!