Wedges and dashes are used to indicate the shape in a drawn structure. A wedge indicates that the atom or group is of the page and a dash indicates that the atom or group is going into the page .

Wedges and dashes are used to indicate the three dimensional shape in a drawn structure.

A wedge indicates that the atom or group is GOING OUT of the page.

Explanation:

wedges and dashes are ways or drawings use to represent three dimensional shape in a structure. Lines are use to represent image in the structure. A wedge line shows that molecules or bonds are moving towards the viewer i.e out of the the page.

A dashes line shows that bonds or atom are moving away the viewer or going into the group.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be