Do the points \(P(13, 7)\), \(Q(–7, –13)\) and \(R(7, 13)\) form a triangle? If so, name the type of triangle formed.
 
Answer:
 
\(PQ\) \(=\) i
 
\(QR\) \(=\) i
 
\(PR\) \(=\) i
 
, the given points a triangle.
 
The given vertices form a .