Square is to cube as circle is to sphere....two dimensial compared to three dimensial figures.
square - cube as circle - sphere
A triangular prism
square
cube
a cube is a 3d square and a cylinder is 3d circle + rectangle shape.
square - cube as circle - sphere
Oval
If this is an analogy, the answer would be sphere.
square:plane::cube:
A triangular prism
Square is to cube as circle is to.......sphere
square
The completion of that analogy is 3-dimensional.
Sphere?
Cube, because it is 3 - dimensional while a square, an oval, a circle, and a triangle are all 2 dimensional.
cube
A cube is a three dimensional square, and a sphere is a three dimensional circle.