题目如图,OCOCOC平分∠AOB\angle AOB∠AOB,在OCOCOC上取一点PPP,过点PPP作PQ⊥OBPQ\bot OBPQ⊥OB,若PQ=5cmPQ=5cmPQ=5cm,则点PPP到OAOAOA的距离为（ ）A.4cm4cm4cmB.5cm5cm5cmC.6cm6cm6cmD.7cm7cm7cm知识点：圆周角定理I章节：图形的性质 / 圆
如图,平分,在上取一点,过点作,若,则点到的距离为（ ）如图,平分,在上取一点,过点作,若,则点到的距离为（ ）如图,平分,在上取一点,过点作,若,则点到的距离为（ ）