I'm suppossed to measure the height of a building tomorrow but I'm not exactly sure of how to do it accurately. Would using 'similar triangles' work? I would measure the length of the tower's shadow and my shadow. Using my height and shadow length, I could calculate the angle and use that angle for the tower/shadow triangle and then caclulate the height. I've also thought about droping an object from the top of the building and find the time it takes to reach the ground and using an equation to find the height. There seems to be a lot of websites on the barometer joke...but nothing that really helps me out. Is there an easier method...other than actually measuring the building?