The length of one side of this cube would be the cube root of 1000 since each of the three dimensions are the same. You could solve this problem with the following equation, where is the side length.
= 1000
=
= 10
So, the side length of the edge of the cube is 10ft.
-A is incorrect because the shape did not change -C is incorrect because the shape isn’t reflected over the y axis -D is incorrect because it’s clearly moved to a completely different part of the grid