help please

KEY QUESTIONS Lesson 14 1. Below are the nets for two different designs that are being considered for a new cereal box. 30 cm 28 cm 20 cm 15 cm 10 cm 7 cm Net A Net B a). Show that both designs will produce a box with the same volume. Tip: The formula for the volume of 'a rectangular prism is V = lwh (that's to say: length x width x height). (3 marks) b) Calculate the surface area of each box. Tip: Surface area means the total area of all the outside surfaces of an object. (6 marks) 0) Which design should the cereal company use as the net for its boxes? Justify your answer. (2 marks) ' 2. Draw a pattern for the triangular prism shown below. Don't forget the tabs! [5 marks] 4cm cm 10 cm 4 cm