A person who is 5 feet, 6 inches (5.6 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations.

Answer 1

5 feet, 6 inches = 5.5 ft not 5.6 ft

I don't have your diagram, so have no clue where your N, S etc are, but I can guess that

5.5/12 = height/30
height = 30(5.5/12) = 13.75 ft
= 13 ft, 9 inches