Warm up
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Warm-up. Grab your clicker for todays warm-up. Geometry: Chapter 6. 6.1: Polygons. All polygons: What is special about them?. Polygon: A plane figure that is formed by 3 or mores segments. Sides: Segments Vertex: Where sides meet

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Warm-up

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Warm up

Warm-up

  • Grab your clicker for todays warm-up


Geometry chapter 6

Geometry: Chapter 6

6.1: Polygons


Warm up

All polygons: What is special about them?


Warm up

  • Polygon: A plane figure that

    is formed by 3 or mores

    segments.

  • Sides: Segments

  • Vertex: Where sides meet

  • Diagonal: Segment that connects nonconsecutive vertices.


Practice

Practice


Classification of polygons by their number of sides

Classification of Polygons by their number of sides

Triangle

Octagon

Quadrilateral

nonagon

Pentagon

decagon

Hexagon

dodecagon

heptagon

N-gon


Practice1

Practice


Warm up1

Warm-up

  • Name the following polygons


Quadrilateral interior angles theorem

Quadrilateral Interior Angles Theorem

  • The sum of the measures of the four angles of a quadrilateral equals 360˚

    • Ex:

      ____ + ____ + ____ + ____ = 360


Practice2

Practice


Reflectional symmetry

Reflectional Symmetry

  • When a figures reflected image across a line coincides with the preimage

U LOVE GEOMETRY!


Warm up

Line of symmetry: a line that a figure has if it can be mapped onto itself by a reflection


Practice3

Practice


Warm up

Rotational symmetry

if the figure has at least one rotation image, not counting 0° or 360°, that coincide with the original figure.

Describing Rotational Symmetry: State the number of positions the figure coincides with itself, including original position


Example

Example


Practice4

Practice


Practice5

Practice


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