Firstly , we need to draw diagram
we are given
opposite =300
adjacent =750
now, we can use tan formula
[tex] tan(x)=\frac{300}{750} [/tex]
now, we can find x
[tex] x=tan^{-1}(\frac{300}{750}) [/tex]
we get
[tex] x=21.8 degree [/tex]
so,
angle of depression is 21.8 degree.....Answer