Hey there!
YOUR CORRECT ANSWER TO THIS QUESTION WOULD ACTUALLY BE THE LAST OPTION. THIS WOULD BE CONSIDERED TO BE (NOT TRUE).
The reason why I would say this is because, there would be not way on how that [tex] \left[\begin{array}{ccc}\boxed{\boxed{PQ=QR}}\end{array}\right] [/tex]. They're are obviously to different sizes in this shape, this is why the last option would be your correct answer.
Hope this helps you!