Arc length is figured by the following formula theta/360 x 2pi(r) input the knowns 30/360x2pi(20)=11.52 miles
        
             
        
        
        
Answer:
46
Step-by-step explanation:
just do -4x-4=16 then 6x5=30 than add 16+30 =46
 
        
             
        
        
        
Answer:

Step-by-step explanation:
First off, your drawing is kinda inaccurate, because the  looks like a right angle, but as you drew it yourself it doesn't matter too much.
 looks like a right angle, but as you drew it yourself it doesn't matter too much.
We know that the sum of the angles of a triangle will always equal  , so we have that
, so we have that  .
.
Combining like terms on the left side gives  .
.
Subtracting  from both sides gives
 from both sides gives  .
.
So,  and we're done!
 and we're done!
 
        
                    
             
        
        
        
Answer:
Pyramid
Step-by-step explanation:
Hope this helps!