Question 3926
You should also be able to do this using ratios.

Standing next to the pole, measure your shadow from the sun.

If you know your height to be 72 inches and you shadow is 60 inches,

measure the shadow of the pole. 

For example, if the pole shadow is 240 inches, you can set up a ratio

your height = 72
Your shadow = 60
Pole height = x
Pole shadow = 240

Your ratio will be 72/60   = x/240

You can solve for x, and you height will come out to be 288 inches, which will 
come out to be 24 feet.
Cleomenius