Final answer:
The diameter of the circle is 26 units.
Step-by-step explanation:
The diameter of a circle is the distance between two points on its circumference. To find the diameter of a circle given the coordinates of its endpoints, we can use the distance formula. The formula for finding the distance between two points (x1, y1) and (x2, y2) is:
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Using the given coordinates, we can substitute the values into the formula:
d = sqrt((22 - (-2))^2 + (11 - 1)^2)
d = sqrt(24^2 + 10^2)
d = sqrt(576 + 100)
d = sqrt(676)
d = 26
Therefore, the diameter of the circle is 26 units.