X is the circumcenter of triangle ABC means that X is the center of the circle circumscribed to triangle ABD, as shown in the figure.
This means that All XA, XB and XC are radii of the circle with center X. Since AX and CX are 5.3 cm, then so is XB.
Answer: XB=5.3 cm.
This means that All XA, XB and XC are radii of the circle with center X. Since AX and CX are 5.3 cm, then so is XB.
Answer: XB=5.3 cm.
