**Q) **The length of the shadow of a tower on the plane ground is **√**3 times the height of the tower. Find the angle of elevation of the sun.

**Ans: **

Let the tower be AB and its shadow be AC and angle of elevation from point C be θ

Given that AC = √3 x AB

Now in Δ ABC, tan θ =

It means, θ = 30^{0}

**Therefore, angle of elevation of the sun is ****30 ^{0}**