Find the angle of elevation of the sum (sun's altitude) when the length of the shadow of a vertical pole is equal to its height
Let be the angle of elevation of sun. Let
be the vertical pole of height
and
be the shadow of equal length
.
Here we have to find angle of elevation of sun.
We have the corresponding figure as follows
So we use trigonometric ratios to find the required angle.
In a triangle,
tanθ=ABBC
tanθ=hh
tanθ=1
θ=450
Hence the angle of elevation of sun is 45 degree