tell whether the triangle is a right triangle. Explain.
	A.	PQR is not a right triangle because  [tex]5^{2}[/tex]+[tex]12^{2} \neq 13^{2}[/tex].
	B.	PQR is not a right triangle because  [tex]5^{2} + 13^{2} \neq 12^{2}[/tex].
	C.	PQR is a right triangle because [tex]5^{2} + 13^{2} = 12^{2}[/tex] .
	D.	PQR is a right triangle because [tex]5^{2} + 12^{2} = 13^{2}[/tex].
                                             
                                          
                                          
                                       