Find the distance between the two points in simplest radical form

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

4. find the geometric mean of 4 and 12. 24 8