Question

Is sphere, a 2D or a 3D object?

• A. $3D$
• B. $2D$
• C. None of the above
• D. Does not exist in both planes

Answer 1

Answer: (A)

2D2D shapes stand for 22 dimensional shapes. It has only two measurements that are length and breadth.
Examples for 22 dimensional objects are square, rectangle, etc.

3D3D shapes stand for 33 dimensional shapes. It has three measurements that are length, breadth and height.
Examples for 33 dimensional objects are cube, etc.

Therefore, a sphere is a geometrical object in perfectly round three dimensional shape similar to a round ball you might play sport with it.