What is the full question?
The common meter is the music form that consists of four lines of a particular number of beats that end in the rhyming pattern of abab.
Answer:
One of the key features of Renaissance art was the use of geometric and symmetric shapes to create a sense of balance and harmony. Michelangelo's Pietà is shaped like a triangle, with Mary's head at the top and Christ's body in her lap forming the base.
Raphael used very plain backgrounds for his portraits to focus on the main subject, whereas da vinci added some extra detail