Question

If the angle of elevation of the sun with the ground is 18.7 degrees, what is the length of the shadow cast by a 4 foot person to the nearest foot?

Answer 1

Length of his shadow to the nearest foot is `12`

Explanation:

Angle of elevation is `theta =18.7^0`

let `s=x` ft be length of shadow of `h= 4` ft tall man

`tan theta = h/s or tan 18.7 = 4/s or s = 4/tan 18.7` or

`s ~~ 11.82 ~~ 12` ft

Length of his shadow to the nearest foot is `12` [Ans]