The dimensions of a rectangular prism are shown in the diagram

29.9

Step-by-step explanation:

A rectangular prism consists of three different dimensions. The prism's length, height and width create its volume and surface area, which are its internal and external measurements, respectively. When you know two of the dimensions and either the volume or surface area, you can find the third dimension. Find the width of a rectangular prism using the formulas for volume and surface area, which are volume = length x height x width, and surface area = 2 x length + 2 x height + 2 x width.