find the length of ABC
PC=18
needddddd help
                                             
                                          
                                          
                                        
											 
											Answer:
[tex]\frac{3\pi }{2}[/tex]
Step-by-step explanation:
The central angle APC = [tex]\frac{\pi }{2}[/tex], thus
m arc AC = [tex]\frac{\pi }{2}[/tex] and
m arc ABC = 2π - [tex]\frac{\pi }{2}[/tex] = [tex]\frac{3\pi }{2}[/tex]