Question

What is the length of a shadow cast by a 4-foot person, if the angle of elevation of the sun with the ground is around 15.7 degrees?

Answer 1

I tried this:

Explanation:

Consider the diagram:

Where:
`h=4"ft"`
`alpha=15.7^@`
From trigonometry we can say that:
`h/x=tan(alpha)`
rearranging:
`x=h/tan(alpha)=4/tan(15.7^@)=14.23"ft"`