The question is in the picture

Step-by-step explanation:

I hope I got it right.....

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

after simplifying it i got: -36.25 as my answer. hope that !