Answer:
(C)19
Step-by-step explanation:
Volume of the rectangular prism = Length X Height X Width
[tex]= 3X 3 X 3\\=27cm^3[/tex]
Volume of the Cube
[tex]=s^3\\=1^3=1 cm^3[/tex]
Number of Cubes that will fill the rectangular prism = Volume of Prism ÷ Volume of Cube
= 27 ÷ 1
=27
Therefore, we would require 27 unit cubes to fill the prism,
Since Ethan has partially filled the prism with 8 unit cubes, the number left to fill the prism = 27-8
=19.
Ethan needs 19 more cubes to fill the rectangular prism.
