如图，已知OM是∠POQ的平分线，MP⊥OP于P，MQ⊥OQ于Q，S△POM=6cm2，OP=3cm，则MQ=__________cm.

如图，已知OM是∠POQ的平分线，MP⊥OP于P，MQ⊥OQ于Q，S_△_POM=6 cm²，OP=3 cm，则MQ=__________cm.