In paris, the sculpture long-term, created by armand fernandez, contains 60 cars embedded in 3.5 million pounds of concrete. how many tons of concrete is this?

Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal