Opposite sides are parallel
Opposite angles are congruent
Opposite sides are congruent.
Consider the circle with center X, as shown in the figure.
Draw the diameter of the circle which is parallel to cherd AB, as shown in the figure.
Since the diameter and AB are parallel, then the line segment XC which bisects AB at C, will be perpendicular to AB.
SO triangle XCB is a right triangle. Thus the length of CX, by the Pythagorean theorem is

units.
Answer: 8 units
Trick questionyou do not have enough information to make a equation
Total Outcome = 6
Number greater than 4 = 2 (5&6)
So, probability would be 2/6 = 1/3
(D)OPTION D IS YOUR ANSWER
5*4 + 3 = 20 + 3 = 23 the answer to the question