  Measurements of event shapes and azimuthal correlations are presented for
events where a Z boson is produced in association with jets in proton-proton
collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s)
= 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The
analysis provides a test of predictions from perturbative QCD for a process
that represents a substantial background to many physics channels. Results are
presented as a function of jet multiplicity, for inclusive Z boson production
and for Z bosons with transverse momenta greater than 150 GeV, and compared to
predictions from Monte Carlo event generators that include leading-order
multiparton matrix-element (with up to four hard partons in the final state)
and next-to-leading-order simulations of Z + 1-jet events. The experimental
results are corrected for detector effects, and can be compared directly with
other QCD models.
