Answer:
PQ and QR are congruent.
Step-by-step explanation:
The length of PQ = sqrt [(2 - -1)^2 + (-1 - 3)^2]
= sqrt 25
= 5 units.
QR =  sqrt [(5-2)^2 + (3 - -1)^2) ]
= sqrt 25
= 5 units.
PR =  sqrt [ ( 3-3^2 + (5- -1)^2]
= sqrt 36
= 6 units.
 
        
             
        
        
        
An isosceles triangle. This triangle has 2 sides that are equal.
        
             
        
        
        
Answer: 5x + 2
Step-by-step explanation: