In Cartesian coordinate system, O is the origin of coordinate and the coordinate of point a is (2,2). If point P is on X axis and △ apo is isosceles triangle, then the point P & nbsp; satisfying the condition has () A. 4B. 3C. 2D. 1

In Cartesian coordinate system, O is the origin of coordinate and the coordinate of point a is (2,2). If point P is on X axis and △ apo is isosceles triangle, then the point P & nbsp; satisfying the condition has () A. 4B. 3C. 2D. 1

If the coordinates of point a are known as (2,2), then the edge of △ OAP OA = 22, which may be the bottom or the waist. ① when OA is the bottom, point P is the intersection of the vertical bisector of OA and the x-axis, and the coordinates of these two points are (2,0); ② when OA is the waist, when o is the vertex of the vertex, take o as the center and OA as the radius