Today’s Plan: Unit 1 - Geometry
What makes a polygon?
Polygon
A polygon is a closed shape made of line segments (sides) connected endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Not a polygon
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Not a polygon Polygon!
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Not a polygon
Polygon
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Not a polygon Polygon!
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
The sides are line segments (no curves)
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
The sides are line segments (no curves)
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
The sides are line segments (no curves)
At least three sides
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
The sides are line segments (no curves)
At least three sides
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
The sides are line segments (no curves)
At least three sides
Only one inside
Polygons
Sides connect at endpoints (can’t cross)
Closed shape
The sides are line segments (no curves)
At least three sides
Only one inside
Review – Which of these are polygons?
Review – Which of these are polygons?
Review – Which of these are polygons?
Review – Which of these are polygons?
Review – Which of these are polygons?
Review – Which of these are polygons?
Review – Which of these are polygons?
Review – Which of these are polygons?
Summery
A polygon is a closed shape made of sides that connect endpoint to endpoint.
Closed shape
The sides are line segments (no curves)
At least three sides
Only one inside