Answer:
The volume of the new prism is 24 ft³
For standing of prisms side by side, only the length of the ne prism is increased
Explanation:
The dimensions of the new prism are;
Length = 8 mm
Height = 3 mm
Width = 1 mm
Therefore, the volume of the of rectangular prism is given by the following expression;
Volume = Width × Height × Length = 8 × 3 × 1 = 24 ft³
Therefore, the volume of the new prism = 24 ft³
Where, the prism are arranged side by side, we have the heights and width remaining the same, while the length is increased.