Polygoner och samband mellan dessa

En presentation över ämnet: "Polygoner och samband mellan dessa"— Presentationens avskrift:

1 Polygoner och samband mellan dessa
Trianglar Fyrhörningar Trapetser Drakar Oliksidiga Likbenta trianglar Parallellogram Likbenta trapetser Liksidiga trianglar Romber Rektanglar Kvadrater Läs och lär definitioner s

2 Hierarchy Among Polygons
likbent olika sidor liksidig

3 More About Polygons

4 Line Symmetries Mathematically, a geometric figure has a line of symmetry ℓ if it is its own image under a reflection in ℓ.

5 How many lines of symmetry does each drawing have?
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6 Symmetri: linje-, punkt-, plan- och rotationssymmetri

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12 Att arbeta med symmetri och mönster i skolan

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17 Rotational (Turn) Symmetries
A figure has rotational symmetry, or turn symmetry, when the traced figure can be rotated less than 360° about some point, the turn center, so that it matches the original figure.

18 Point Symmetry Any figure that has rotational symmetry 180° is said to have point symmetry about the turn center.