Guys I need the rights sneer ASAP ready the question and look at the pic 
The options are
A.3.14 Inches
B.31.4 inches
C.15.7 inches 
D.78.5 inches
Guys I need the right answer ASAP WITH EACH STEPS PLEASE
                                             
                                          
                                          
                                        
											 
			                  