Solve the Problem $\frac { \sqrt { 2 } } { 2 }$

Multiple Choice

Solve the problem.
-Let angle POQ be designated ϴ. Angles PQR and VRQ are right angles. If ϴ = 45°, find the exact length of PQ.

A) 1
B) $\frac { \sqrt { 2 } } { 2 }$
C) 0
D) $\sqrt { 2 }$