Here, the centre of the circle is on Y-axis. Let the centre be (0, m) It is passing through (0, 0) and (2, 3) ∴Distance from the centre to this point will be equal √0+(m−0)2=√(0−2)2+(m−3)2⇒m2=4+m2−6m+9⇒6m=13 m=13∕6 ∴ Centre of the circle (0,13∕6) Now radius ==√0+(0−