Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a...

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Geometry Chapter 10 -1 Polygons

Transcript of Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a...

Page 1: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Geometry Chapter 10 -1Polygons

Page 2: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Page 3: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Concave Polygon - a polygon WITHOUT a line containing a side with a point in the interior of the polygon

Page 4: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Interior Angle Sum Theorem

The sum of the measures of the interior angles of a convex polygon is

S = 180(n – 2)

n = number of sides.

Page 5: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Interior Angle of a regular Polygon

The measure of the interior angle of a regular polygon is

n = number of sides.

180( 2)nS

n

Page 6: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Exterior Angle Sum Theorem

The sum of the measures of the exterior angles of a convex polygon, one at each vertex is

3600

Page 7: Geometry Chapter 10 -1 Polygons. Convex Polygon – a polygon with a line containing a side with a point in the interior of the polygon.

Exterior Angle of a Regular Polygon

The measure of an exterior angle of a regular polygon is

n = number of sides.

360S

n