two or more walls or other surfaces meeting edges that form a 90 degree angle shadows or other visual indicators of the corner's shape distinct lines or patterns on the wall surfaces furniture, decorations, or other objects that may indicate a corner
corner which has two or more walls or other surfaces meeting corner which has edges that form a 90 degree angle corner which has shadows or other visual indicators of the corner's shape corner which has distinct lines or patterns on the wall surfaces corner which has furniture, decorations, or other objects that may indicate a corner