Answer:C
Step-by-step explanation:
the line above AB signifies that its a line segment
there are points for A and B
Difference = 48-19
= 29
production decrease = 29 × 100/ 48
= 60.41%
Firstly , we can draw diagram
we can see that
adjacent = 850
opposite =250
so, we can use tan formula


16.38

so,
angle of depression is 16.38 degree........Answer