- For problem 1, rotate each vertex of the triangle 90° counterclockwise around the origin using the rule (x, y) → (-y, x). The new vertices are (-2, -3), (4, -3), and (3, 2).
- For problem 2, rotate each vertex of the quadrilateral 270° clockwise (equivalent to 90° counterclockwise) around the origin using the rule (x, y) → (-y, x). The new vertices are (-5, -2), (-3, 4), (0, 5), and (2, -3).
- For problem 3, rotate each vertex of the triangle 180° counterclockwise (same as clockwise) around the origin using the rule (x, y) → (-x, -y). The new vertices are (-2, 1), (-4, -5), and (1, 4).
- For problem 4, rotate each vertex of the triangle 90° clockwise around the origin using the rule (x, y) → (y, -x). The new vertices are (4, -2), (0, -5), and (-5, -6).
Parent Tip: Review the logic above to help your child master the concept of rotation of shapes worksheet.