A parking lot in the shape of a

 

A parking lot in the shape of a trapezoid has an area of 4,750square meters. The length of one base is 82meters, and the length of the other base is 108 meters. What is the width (height)of the parking lot     

 

Area_trapezoid  =  (the average of the two bases) times (the height)     

 

                  A  =  (1/2)(a+b) • h     

 

             4750  =  (1/2)(82 + 108) • h     

 

             4750  =  (1/2)(190) • h  =  95h     

 

                   h  =  4750 / 95     

 

                   h  =  50     

_.