Please I need help 
I will mark you brainliest 
                                             
                                          
                                          
                                        
											 
											Using the formula shown a^2 + b^2 = c^2
5 ^2 + 12^2 = c^2
25 + 144 = c^2
169 = c^2
Take the square root of both sides:
C = 13