In the figure, the length of BD is 25.1 to 1 d.p.
How to find BD
The length of BD is solved using Pythagoras as follows
From the problem, we now that
BD = diameter of the circle
OC = radius of the circle
And BD = 2 * OC
OC² = OE² + EC²
where EC = 1/2 AC = 1/2 * 22 = 11
OC² = 6² + 11²
OC² = 157
OC = √157
OC = 12.53
BD = 2 * 12.53
BD = 25.06