or is it that there are 540 ruku' in the qur'an because if you recite on ruku' in every rak'ah, then you will finish the qur'an on laylat al-qadr 27 nights x 20 rak'ahs = 540 ruku' so are ruku's [of qur'an] so called because of rak'ah and in turn, is rak'ah so called because you only get it if you bow with the imam?
is each unit of salah known as a rak'ah because you only get the rak'ah if you got the ruku' with the imam? so, is rak'ah from ruku'?