Step 2 Construct an angle congruent to X on each segment. Measure the distance from each segment to point P and mark off this distance on the corresponding ray to locate the image of the new segment. Step 3 Connect the image of the segment. Rotations in the Coordinate Plane Example 5: Drawing Rotations in the Coordinate Plane Rotate ΔJKL with vertices J(2, 2), K(4, –5), and L(–1, 6) by 180° about the origin. Graph the preimage and image. The rotation of (x, y) is (–x, –y). Example 6: Rotate ∆ABC by 180° about the origin. The rotation of (x, y) is (–x, –y).
Step 2 Construct an angle congruent to X on each segment. Measure the distance from each segment to point P and mark off this distance on the corresponding ray to locate the image of the new segment. Step 3 Connect the image of the segment. Rotations in the Coordinate Plane Example 5: Drawing Rotations in the Coordinate Plane Rotate ΔJKL with vertices J(2, 2), K(4, –5), and L(–1, 6) by 180° about the origin. Graph the preimage and image. The rotation of (x, y) is (–x, –y). Example 6: Rotate ∆ABC by 180° about the origin. The rotation of (x, y) is (–x, –y).
geo-b-12-3-rotations-student-notes.docx