Symmetrical flags Remember Symmetrical shapes may have more than one line of symmetry.
You will need:
a ruler, a mirror
Vocabulary flag, symmetry, line of symmetry
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Each flag has 0, 1 or 2 lines of symmetry. Draw the lines of symmetry on each flag and write how many lines you found.
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
SA M
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
____ lines of symmetry
Now draw 3 flags, one with no lines of symmetry, one with 1 line of symmetry and one with 2 lines of symmetry. Hint: Use the
mirror to check for lines of symmetry. Original material © Cambridge University Press 2016
Unit 1B Geometry and problem solving CPM Framework 3Gs1, 3Gs5, 3Gs7, 3Pt8; CPM Teacher’s Resource 8.1
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