a skip is in the shape of a prism with cross section ABCD..AD=2.3M,DC=1.3M and BC=1.7M. the width of the skip is 1.5m...(a) calculate the area of the shape ABCD. (b) calculate the volume of the skip. The weight of the empty skip is 650kg..The skip is full to the top with sand.1m^ of the sand weighs 4300kg. (c) calculate the total weight of skip and sand . HELP ! ANYONE PLEASE ..thanks craig