That's just the distance between 2 points
the distance between (x1,y1) and (x2,y2) is

we can find the distance between S and Q or P and R
S and Q is (0,0) and (a,b)


distance between P and R is between(0,b) and (a,0)




so the lengths of diagonals are congruent
Divide y by x, in this case 144 gets divided by 9, and you have your answer
Answer:
Neither
Step-by-step explanation:
Although the lines intersect it is not at a 90° angle meaning it's neither perpendicular or parallel.
Cause this line passes through the point O. So there is only A suitable for that
hope it is useful for you