Answer:
The radius of the circle with the circumfrence we need to find is 15+3=18.
18*2pi=113.04
 
        
             
        
        
        
Answer:
If the two chords are congruent, then they must be equidistant from the centre of the circle. 
Ans: D
 
        
             
        
        
        
Answer:
0.125
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
the answer is the same.....
 
        
                    
             
        
        
        
Let b and h represent the length of the side of the base and the slant height, respectively. Then the total surface area is
  A = b² + 4*(1/2)bh
  A = b² +2bh
Substituting the given numbers, you have
  336 = 12² +2·12·h
  192 = 24h . . . . . . . . . subtract 12² = 144
  8 = h . . . . . . . . . . . . . divide by 24
The slant height is 8 inches.