Class 10

Math

All topics

Some Applications of Trigonometry

The length of a shadow of a pole is $3 $ times the length of the pole. The angle of elevation of the sun is

- $30_{∘}$
- $60_{∘}$
- $90_{∘}$
- $45_{∘}$

The shadow and a pole will form a right angled triangle, with $θ$ being the angle of elevation

Hence, $tanθ=sp $

$tanθ=p3 p $

$tanθ=tan30$

$θ=30_{∘}$