A school wants to conduct tree plantation programme. For this a teacher allotted a circle of radius 6m ground to nineth standard students for plating sapplings. Four students plant trees at the points A,B,C and D as shown in figure. Here AB = 8m, CD = 10 m and `AB bot CD`. If another student places a flower pot at the point P, the intersection of AB and CD, then find the distance from the centre to P.