Answer:
none of the above? sorry not too sure
 
        
             
        
        
        
Answer:
7.5 cm²
Step-by-step explanation:
Dimensions of the large ∆:


Dimensions of the small ∆:


Difference between the area of the large and the small ∆ = 13.5 - 6 = 7.5 cm²
 
        
             
        
        
        
Answer:I think it’s A sorry if it’s wrong.
        
             
        
        
        
Answer: The answer that is not true is choice D.
If Katie drew those chords and those line segments to form a square, then the diagonals would have to be congruent. The only way to have them would be through the center, therefore they must be diameters.
And if it is a square, then the diagonals are perpendicular bisectors meaning the angles would be right angles not acute or obtuse as in Choice D. <span />
        
             
        
        
        
Answer:
(3,9)
Step-by-step explanation:
u=(1,3) and v=(2,6), 
 u+v = (1+2, 3+6)
         =(3,9)