5.8 to 1 decimal place would be 0.58
The similarity ratio would be 2:3.
Quadrant 2 or 4. All points in quadrant 1 are both positive, all points in quadrant 3 are both negative.
For function to be linear , degree(highest power must be 1) like y=2x but here....y=constant which has a degree 0 hence not linear
Cosine = adjacent / hypotenuse so that is the trig ration we use here:-
cos M = 32/41 = 0.78049
m < M = 38.69 degrees to nearest hundredth