Rotate 90 counterclockwise using rules

IXL - Rotations: find the coordinates (Geometry practice)

90 Degree Counter Clock Wise Rotation About Any Arbitrary Point

Rotate Image by 90 degree - GeeksforGeeks

Common Core Math: Geometric Rotations 270 Counter-Clockwise

Rules of Rotation - Geometry Review (Video)

Lesson Explainer: Rotations on the Coordinate Plane

3 Ways to Rotate a Shape - Lindsay Bowden

Rotations of Shapes

File:Counterclockwise rotation by 90 degrees.gif - Wikimedia Commons