In the following question a certain relation exists between the first two words. The same relation also exists between the third and the fourth word. Out of these four words one word is missing and is denoted by a question mark in the question. Find out the missing word from the words given below.
Circle : ? :: Sphere : cube

Square

The correct answer is OPTION 2 - Square

As sphere and cubes are figures of three dimensions so circle and squares are figures of two dimensions.