Answer:
The side length of the cube is : 6.868 units
Step-by-step explanation:
The volume of a triangular prism is given as;
v= base area * length
v=1/2 b*h*l where b is the base length, h is the height of the prism and l is the side length of the prism
Given that : b=9, h=12,l=6
v= 1/2 * 9*12*6 =324 cubic units
Volume of a cube is given as;
v=l³ where l is side length of the cube
324= l³
[tex]\sqrt[3]{324} =l\\\\6.868=l[/tex]