



 
Hi Susan. You are right that it is a right triangle. The hypotenuse is the trail (5808 feet), the height is 900 and so the base is found using pythagorus' theorem. So: base = sqrt(5808^2  900^2) = 5738 feet Put another way, you have a 900 foot "rise" and a 5738 foot "run". The percentage incline is normally the "gradient" that department of transportation people use. That's expressed as a percentage but is calculated as the rise over the run. In your case, this is 900/5738 = 15.7 %. Hope this helps your training, PS: When it warms up and you get onto it, we'd love to have you email us a photo of the trail ! :)  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 