What was the significance of the masks?

Have you ever wondered what the role of masks in Greek Theater actually mean? Well the masks are used for many reasons.
Every mask was hand-made with certain materials: modeled of wood, linen, and cork. Currently, there are is no physical proof of the masks because the materials used deteriorate quickly (Theatre of ancient Greece). The masks were a significant part of the plays in the theater. They helped to distinguish which character was which. Every actor wore a mask at all times during the play, which meant there didn't need to be as many actors hired because they'd always have a different mask on (Wikipedia). The masks were made to fit many different sizes. The masks were also personalized so that specific features of the mask were exaggerated and included the appropriate hairstyle, facial expressions, ornaments and other features as well (Theatre of ancient Greece).