Here are three lines ... on each of the shapes. Shape A, B and D all have 4 sides and 4 corner. Shape C is a triangle. It has 3 sides and 3 corners, so it is the odd one out.
Antique and vintage furnishings are inherently timeless; after all, if that table was beautiful in 1920 and still looks great ...
Faces - A face is a flat surface on a 3D shape. For example a cube has 6 faces. Edges - An edge ... And a circle becomes a sphere with just one large, curved face, like a ball.