



 
Hi Randy. I tried to consider a roof where the edges were 30', but if Here's a diagram of what I mean: This shows a trapezoidal roof. The area of a trapezoid is the average of the top and bottom lengths times the height. So your roof is (86 + 25) / 2 x 30 = 915 square feet. If we have misinterpreted your description let us know. Cheers,  


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