By definition a sphere is 3D. If it were only 2D it would be a circle.
a rectangle in 3D A brick shape.
A 2D shape is flat and only has a surface area whereas a 3D shape is an object that has surface area and volume.
No 3D shape has only three sides to be a complete unit. If a 3D shape has a side which is curved, it has more than three sides, because any curve on a 3D object is an infinite number of sides. Think of it like if you had a million sided 2D object. From a distance, it would look like a circle, but mathematically, you can't have a perfect circle.
A cylinders
By definition a sphere is 3D. If it were only 2D it would be a circle.
a rectangle in 3D A brick shape.
It looks like a 3D shape that has 9 sides (the cousin of an octogon).
A box - for example a box of cereal
A 2D shape is flat and only has a surface area whereas a 3D shape is an object that has surface area and volume.
No 3D shape has only three sides to be a complete unit. If a 3D shape has a side which is curved, it has more than three sides, because any curve on a 3D object is an infinite number of sides. Think of it like if you had a million sided 2D object. From a distance, it would look like a circle, but mathematically, you can't have a perfect circle.
A parallellopiped
A cylinders
Wheel is a "Toroid" shape which is like a donut.
A sphere or a globe is a 3D circular shape
A rhombus is a four sided polygon, a quadrilateral. It is a 2d shape. 2d shapes have 2 dimensions, like length and width. 3d shapes have 3 dimensions, like length, width and depth.
only if it is in a certain shape, although the 3d shape would not look exactly like the 2d one, take this, if a square were to be turned into a square, it would have to be extended, but if you were to do this it would just stay as a 2d square, in a 3d world, but if it were a net (like the t cube) then yes, it would be able to become 3d