State the mid points of all the sides of Fig. 2.26.

Mid – point of a line segment divides it into two equal parts.

Clearly, from the figure,

AZ = ZB, AX = XC and CY = YB. So, Z, X and Y are the mid-points of AS, AC and CB respectively.

Hence, there are 3 mid-points, i.e. X, Z and Y.