Answer:
Romeo's lines make up one quatrain, which uses an abab rhyme scheme.
Step-by-step explanation:
A quatrain is said to be a stanza comprising of four lines. The lines of Romeo and Juliet both are written in the quatrain. The lines of Romeo is intended towards the initiation of a sonnet. The rhyme scheme being abab. The words 'hand', and 'stand'; 'this' and 'kiss' are rhyming in the first stanza. The further lines said by Juliet and have a rhyme scheme of cdcd. The words 'much' and 'touch'; 'this' and 'kiss' are rhyming in the second stanza.