Answer:
See explanation
Explanation:
The question is incomplete, as the dimension of each prism is not given.
So, I will give a general explanation.
From the question, we understand each prism.
So, to get the new volume; we simply add up the volume of each prism.
For instance (we want to make assumptions)
Rachel

Timothy

Robyn

So, we have:

For each, we have:



The volume of the new


The dimension of new prism.
Using the assumed values, we have:



Now, we consider the measure of the sides
Sides with the same length will form a new side.
Side 1
--- Rachel
---- Timothy
--- Robyn
The above lengths have the same measure. So, one of the sides of the new prism will assume the value of this length.
So:
-- for the new prism
Side 2



The above lengths have the same measure. So, one of the sides of the new prism will assume the value of this length.
So:
-- for the new prism
Side 2



For this, we simply add up each length.
So, we have:

--- for the new prism
So, the new dimension is:




