An aquarium is being installed in the reception area of a new office. It needs weatherproofing around the insert that contains it. The scale drawing of the plans on the coordinate plane has the vertices W (−9,7) , X (−9,22) , Y (12,22) , and Z (12,7) What measurement from the drawing should the contractor use to determine the amount of weatherproofing needed? Round the answer to the nearest whole number if necessary. Enter your answer in the box.