haliewest1234 haliewest1234
  • 03-09-2018
  • Mathematics
contestada

What is the angle (relative to the horizontal) of a 4 in 4 roof? Is it possible to have a 7 in 4 foot? Explain.

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sqdancefan
sqdancefan sqdancefan
  • 04-09-2018

If "y in x" means the rise is y for a run of x (both in the same units), then the tangent of the angle is y/x.

... angle for 4 in 4 roof: arctan(4/4) = 45°

Yes, it is possible to have a 7 in 4 roof.

... angle for 7 in 4 roof: arctan(7/4) = 60.3°

_____

As long as the run is non-zero, the rise can be anything you like.

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