Polygons - westg.org

Polygons - westg.org

Polygons Polygons Simple, Closed figure

Made up of line segments Types of Polygons Triangles

three sides Quadrilaterals four sides Pentagon

five sides Pentagon five sides Hexagon

six sides Heptagon seven sides septuplets

Octagon eight sides STOP

Octagon eight sides Nonagon nine sides

Decagon ten sides Review A polygon is a simple,

closed, figure made up of line segments. A polygon is classified by the number of sides it has.

Can you classify these polygons? Regular Polygons

A regular polygon has all sides and all angles congruent. A

Which is a regular polygon? B Triangles

Triangles can be classified by their sides or by their angles.

Triangles Classifying triangles by the angles. Acute Triangle All angles are acute.

Right Triangle Contains one right angle. Obtuse Triangle

Contains one obtuse angle. Classify Triangles by their angles

Acute All angles are acute

Right Contains one right angle

Obtuse Contains one obtuse angle TRIANGLES Classifying triangles by their sides

TRIANGLES SCALENE TRIANGLES

SCALENE ISOSCELES TRIANGLES SCALENE

ISOSCELES EQUILATERAL Classify triangles by its sides

Scalene No sides congruent

Isosceles Two sides congruent

Equilateral All sides congruent WHAT IS A

REGULAR TRIANGLE CALLED? QUADRILATERALS

QUADRILATERALS SQUARES QUADRILATERALS

SQUARES RECTANGLES QUADRILATERALS SQUARES

RECTANGLES PARALLELOGRAMS RHOMBUS

RHOMBUS TRAPEZOIDS WHAT ARE

REGULAR QUADRILATERALS CALLED? Squares

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