Which meter is used in these lines from shakespeare's sonnet 18?

shall i compare thee to a summer's day?
thou art more lovely and more temperate:
rough winds do shake the darling buds of may,

The meter for Sonnet 18 is the same used for all of Shakespeare's sonnets: iambic pentameter.

The iambic pentameter indicates the rythm of the poem is that of an unstressed syllable followed by a stressed syllable (iambic), which is repeated 5 times in each line (pentameter).

For example:

Shall I compare thee to a summer's day?

There are 5 unstressed and 5 stressed syllables.

Shall I compare thee to a summers day?

Thou art more lovely and more temperate:

✔Rough winds do shake the darling buds of May,

✔And summer's lease hath all too short a date

Hope this helps you! :)

i'm pretty sure it is 1) wants to hide her true feelings about robert. i'm sorry if it is wrong. good luck! : d