What are art elements that are three-dimensional, with height, width, and depth? forms shapes hues lines

Forms are art elements that are three-dimensional, with height, width, and depth.  Form, together with shape are areas or masses which define objects in space. Forms in art are used by artists to produce an illusion of 3D and depth on a two-dimensional surface.

the answer of "what has three legs but never walks" is a yard stick. this answer can be found at

nope becasue a mosque is a place where muslims pray to god, but the taj mahal was built by (forgive me) someone for his wife. i dont think anyone prays there. also a mosque is for muslims but indians are hindi.