In figure ab and hf are parallel to each other df and fg are parallel to the measure of angle fde

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

15/16 as a decimal rounded to the nearest hundredth

Can someone tell me if this is perpendicular? !