Answer:
   square; perimeter 20 units; area 25 square units.
Step-by-step explanation:
As the attachment shows, each side of the polygon is the hypotenuse of a 3-4-5 right triangle, so has length 5 units. The perimeter is the sum of those lengths, 4×5 = 20; the area is the product of the lengths of adjacent sides, 5×5 = 25.
The figure is a square of side length 5 units.
The perimeter is 20 units; the area is 25 square units.
 
        
             
        
        
        
Answer: wait I was wrong I saw thinking about something else
yes that is a unit rate.
 
        
                    
             
        
        
        
The way we simplify this is by using the distributive property and multiply every term by 0.5. When we do this we get 2a+3b
        
             
        
        
        
Coordinates for new triangle -
P’(-1,1)
Q’(-3,3)
R’(-3,1)