Answer:
The blanks are given as:
1 ----- 6
2 ----- 12
Explanation:
A rectangular prism is a three dimensional figure or object that has 6 faces which are rectangles. The number of edges in rectangular prism are 12.
The rectangular prism is also known as a " Cuboid ".
Now,
it is given that Alex wants to paint each face of the prism with different colors.
So, the number of colors he will use is 6. ( As it has 6 faces)
Also, he wants to put a red ribbon along each of its edges, then the number of ribbon pieces he needs is 12. ( As it has 12 edges).
Hence, the blanks are filled as:
1 ----- 6
and 2 ---- 12.