Answer:
First one-3
Second one-0
Last one-12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The diameter would be 4.456338407...
Step-by-step explanation:
This is because if the formula for circumference is C= D(pi) , to find the diameter it's the opposite. D= C/pi
 
        
             
        
        
        
Answer:
18 sides.
Step-by-step explanation:
The interior and exterior angles sum to 180 so:
        I + E = 180
also  I - E = 140       (given)
So, adding to eliminate E:
       2I = 320
I = 160 degrees and the external angle E = 1809 - 160 = 20 degrees.
Since the sum of all exterior angles in a polygon = 360 degrees
- the number of sides = 360 / 20 = 18.
 
        
             
        
        
        
23308 is the answer of how many is even with no repitition
        
             
        
        
        
Answer:
The answer is 30.6 Units.
Step-by-step explanation:
~10+~5+~10+~5=~30.6