Gianna builds a solid rectangular prism that has the same volume as Thomas's rectangular prism. The bottom layer of Gianna's prism is shown below. How many layer(s Gianna's rectangular prism have? Gianna says 2 layers; The bottom layer of the rectangular prism is 10 cubes long and 3 cubes wide. So the bottom layer has 10x 3 -30 Gianna's prism has a volume of 60 cubic inches, so her prism must have 2 layers (30 x 2=60). True False