Why Italy
is a 100% lean 90 deg, 180 deg or 360 deg?
My 12 y.o. son recently had to do an assignment... he had to produce a travel brochure on a certain part or piece of Italy. He chose the Leaning tower of Pisa. He searched the net and found a description which described the tower as having a lean of 10%. My question is this (given we all know that a lean or arc etc should be measured in deg) would a 100% lean be 90 deg? I think so.. given that a total fall from vertical to horizontal is as far a fall as you could have (hyperthetically).
Public Comments
- Yep, I'd think 90 too!
- The % rise is how many feet rise there are in 100 feet. A 100% rise has opposite and adjacent being 100, so the angle is 45 degrees.
- Though the answer 90 degrees seems correct, it is not so. Actually it depends on the surface where the building is standing. If the surface was a plain surface, then 100% lean = 90degrees But if it is an inclined surface, say, for example, the side to which the building is leaning is at an incline of 10 degrees(that is going upwards) ,then 100% lean = 80degrees. Or if it is inclined downwards at an angle of 10 degrees, then 100% lean=100 degrees. Moreover, if the surface is not uniform, then we have to consider the shape and height of the building and the minimum lean degree at which the building will touch the surface. This will then be your 100% lean.
