Congruence, Transformation & Symmetry

Mathematics, Grade 4

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Congruence & Similarity Symmetry 1 line of symmetry 4 lines of symmetry line of symmetry mirror placed through the middle of letter A 3 lines of symmetry Transformations Flips, Slides & Turns The three main transformations are: The reflected part of letter A on the mirror looks exactly the same as the original part. Similar figures are identical in shape, but not in size. A figure has line of symmetry if it can be folded or reflected into two congruent parts that fit on top of each other. The fold line or line of reflection is called the line of symmetry. Shapes can be congruent if one of them has been transformed by sliding, flipping or turning. The figure is moved along a straight line. The figure is flipped over a line creating a mirror image. The figure is moved around a point. Congruent figures are identical in both shape and size. © Copyright NewPath Learning. All Rights Reserved. 93-4509 www.newpathlearning.com Slide or Translation Flip or Reflection Turn or Rotation A A A B B B C C1 B1 A1 D1 D C C mirror image Congruence, Transformations & Symmetry
Congruence & Similarity Symmetry 1 line of symmetry 4 lines of symmetry 3 lines of symmetry Transformations Flips, Slides & Turns The three main transformations are: Similar figures are identical in , but not in . A figure has line of symmetry if it can be folded or reflected into parts that fit on top of each other. The fold line or line of reflection is called the . Shapes can be congruent if one of them has been transformed by , or . . Congruent figures are in both and . © Copyright NewPath Learning. All Rights Reserved. 93-4509 www.newpathlearning.com Slide or Translation Flip or Reflection Turn or Rotation A A B B C D C Congruence, Transformations & Symmetry Key Vocabulary Terms congruent flip fold line line of reflection line of symmetry reflection rotation shape similar size slide symmetry transformation translation turn \|xiBAHBDy01642nzW