我是一名初中生，请帮我制作这个题的解答过程视频---**Extraction Content:** **Question Stem:** 1. 如图, OC平分∠AOB, 点 P 在 OC 上, PD⊥ OB, PD=2, 则点 P 到 OA 的距离是______. **Translation of Question Stem:** 1. As shown in the figure, OC bisects ∠AOB, point P is on OC, PD⊥ OB, PD=2, then the distance from point P to OA is______. **Given Information:** * OC bisects ∠AOB. * Point P is on line segment OC. * PD is perpendicular to OB (PD⊥ OB). * The length of PD is 2 (PD=2). **Question Asked:** * Find the distance from point P to line OA. **Chart/Diagram Description:** * **Type:** Geometric figure. * **Elements:** * Point O: The vertex of the angle. * Rays OA and OB: Form the angle ∠AOB. OA is directed upwards and to the left, OB is directed horizontally to the right from O. * Ray OC: Lies between OA and OB, originating from O, extending upwards and to the right. * Point P: Located on ray OC. * Line segment PD: Drawn from P, perpendicular to OB at point D. * Point D: The foot of the perpendicular from P to OB, located on ray OB. * **Relationships:** * OC is labeled as bisecting ∠AOB. * PD is perpendicular to OB (indicated by the text "PD⊥ OB"). A right angle symbol is implied but not explicitly drawn at D. * P is on OC. * D is on OB. **Other Relevant Text:** * None present other than the question itself.