sir this is the question from the book -ML aggarwal( avichal publication) class 10th , chapter20 , heights and distances
we have been given that An electric pole is 10 metres high. If its shadow is 10√3 metres in length, so we are asked to find the elevation of the sun.
question no 1 , heights and distances , ICSE board, M L Aggarwal
Consider AB as the pole and OB as its shadow.
It is given that
AB = 10 m, OB = 10√3 m and θ is the angle of elevation of the sun.
We know that
tan θ = AB/ OB
Substituting the values
tan θ = 10/ 10√3 = 1/√3
So we get
tan 300 = 1/√3
θ = 300