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Rotation. Mathematics. Geometry — Grade 7. Identify and perform rotations in the coordinate plane. Describe the transformation. K'. L'. M. L. J'. M'. K. J.

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## Rotation

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**Rotation**Mathematics Geometry — Grade 7 Identify and perform rotations in the coordinate plane.**Describe the transformation**K' L' M L J' M' K J JKLM has been rotated 90o about the origin (0,0) in a counterclockwise direction. We could also say that JKLM has been rotated 270o in a clockwise direction.**Describing a rotation or a turn**L' K' M L Rotation of 90o counter-clockwise about (0,0) J' M' K J 1 An angle of rotation 2 A direction (clockwise or counterclockwise). 3 A center of rotation**Which figures have been rotated?**R R R R R**Rotate JKLM 180 degrees about (0,0),**label the image J'K'L'M' J' K' L' M' You can rotate JKLM to check your answer. M L K J J'(__,__) K'(__,__) L'(__,__) M'(__,__) J(2,2) K(5,2) L(5,4) M(2,5) K' J' L' M'**Rotate JKLM 270 degrees counterclockwise about (0,0),**label the image J''K''L''M'' J'' K'' L'' M'' M M'' J'' L L'' K'' K J J''(__,__) K''(__,__) L''(__,__) M''(__,__) J(2,2) K(5,2) L(5,4) M(2,5) You can rotate JKLM to check your answer.**ABCD has been rotated how many degrees about (0,0)?**B A' B' C' D' C A D 90 degrees counter- clockwise or 270 degrees clockwise**Rotation counterclockwise about (0,0)**90 degrees (A,B) (-B,A) (2,5) (-5,2) 180 degrees (-A,-B) (A,B) (5,2) (-5,-2) 270 degrees (A,B) (B,-A) (5,4) (4,-5)**Attachments**Rotation.pdf

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