At a certain instant of time t', a particle has the state function = Ne-ar2Y12 (,

Question:

At a certain instant of time t', a particle has the state function ψ = Ne-ar2Y12 (θ, ϕ), where N and a are constants.
(a) If L2 of this particle were to be measured at time t', what would be the outcome? Give a numerical answer.
(b) If Lz of this particle were to be measured at t', what would be the outcome? Give a numerical answer.