Use the image to answer the question.
An illustraiton of a coordinate plane of 4 quadrants shows x and y axes ranging from negative 8 to 8 in increments of 1. A triangle upper A, upper B, upper C is formed by solid lines at upper A left parenthesis 2 comma 1 right parenthesis, upper B left parenthesis 7 comma 1 right parenthesis, and upper C left parenthesis 4 comma 3 right parenthesis. A triangle upper A prime, upper B prime, upper C prime is formed by dotted lines at upper A prime left parenthesis negative 1 comma 2 right parenthesis, upper B prime left parenthesis negative 1 comma 7 right parenthesis, upper C prime left parenthesis negative 3 comma 4 right parenthesis.
Which transformation shows congruence between triangle ABC
and triangle A′B′C′
?
(1 point)
-degree counterclockwise rotation