Answer:
C
Step-by-step explanation:
This could be either 90° counterclockwise or 270° clockwise but the latter is not an option so the answer is C.
 
        
             
        
        
        
Step-by-step explanation:
RS + ST = 8
(RS + ST)×RS = (4 + 2)×4
8 × RS = (4 + 2) × 4 = 6 × 4 = 24
RS = 24/8 = 3
RS + ST = 8
3 + ST = 8
ST = 5
 
        
             
        
        
        
9 ft is the answer because a square has four sides, so 36 divided by 4 is 9
        
             
        
        
        
The legs are 5 inches long.
Use the Pythagorean theorem:

The length of the hypotenuse of the triangle is approximately 7 inches long.
 
        
        
        
16 - x = 4 
16 - 12 = 4 
x = 12