Chapter 8 Symmetry

SEMESTER 1











The two parts of the original pictures are mirror images of each other and are said to be congruent . Congruent means...
Line symmetry is also found in some letters of the alphabet.
Symmetrical letters may have one or two lines of symmetry.
Which of these flags have aline of symmetry?United States of CanadaAmerica Maryland England



an equilateral triangle has 3 internal angles and 3 lines of symmetry. 
   a square has 4 internal angles and 4 lines of symmetry.   
  a regular pentagon has 5 internal angles and 5 lines of symmetry.  
a regular hexagon has 6 internal angles and 6 lines of symmetry .
   a regular octagon has 8 internal angles and 8 lines of symmetry.





https://www.mathsisfun.com/geometry/symmetry.html
Rotational Symmetry <ul><li>If, when you rotate a shape, it looks exactly the same as it did in its original position, the...













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