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# Polygons - PowerPoint PPT Presentation

Polygons. Abney V. Martinez. Polygon. A polygon is a closed plane figure made up of line segments. Each line segment is a side . The point where the sides meet is called the vertex . More than one vertex are vertices . . Tell which shapes are polygons. .

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## PowerPoint Slideshow about 'Polygons' - kaloni

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Presentation Transcript

### Polygons

Abney

V. Martinez

• A polygon is a closed plane figure made up of line segments.

• Each line segment is a side.

• The point where the sides meet is called the vertex.

• More than one vertex are vertices.

Tell which shapes are polygons.

Scalene, equilateral, isosceles

Scalene triangles have no sides the same length.

2 sides the same length

2 eyes – 2 equal sides

• Equal sides

All sides the same length

• Right triangle

• Acute triangle

• Obtuse triangle

A right triangle has a right angle

A right angle makes a perfect square corner.

Acute angles _ less than 90 degrees

Just look at the angles – not the sides

Obtuse – greater than 90 degrees

Can you tell which angle is obtuse?