SOLUTION: If a cone is 110' across and 13' deep, what is the diameter at 7' deep? I do all the volume, detention time, etc. calculations at my workplace and cannot seem to wrap my mind arou

Algebra ->  Volume -> SOLUTION: If a cone is 110' across and 13' deep, what is the diameter at 7' deep? I do all the volume, detention time, etc. calculations at my workplace and cannot seem to wrap my mind arou      Log On


   



Question 1081535: If a cone is 110' across and 13' deep, what is the diameter at 7' deep? I do all the volume, detention time, etc. calculations at my workplace and cannot seem to wrap my mind around this one!
Answer by chen(11) About Me  (Show Source):
You can put this solution on YOUR website!
Consider a cross section that cuts the cone in two parts. The section is of a triangular shape. Then from the similar triangles, we have:
110/x = 13/7, therefore x = 59.23'