Answer:
A'(5, 8)
B'(2, -1)
C'(-1, 2)
Explanation:
We need to rotate each point A, B, and C 90 degrees clockwise around point (1, 1). So, the angles formed in the following diagram are 90 degrees.
Therefore, the coordinates of points A', B' and C' are:
A'(5, 8)
B'(2, -1)
C'(-1, 2)
