INTRODUCTION TO POLYGONS

Geometry5th GradeMr. Freedman

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THE DIFFERENT TYPES OF POLYGONS

Triangle Square Hexagon Octagon

Rhombus RectanglePentagon

Parallelogram

Click on a Polygon to get started or click the name below

Quick Facts About Triangles

• A Triangle has 3 sides • A right triangle has 90 degree angle in

it• An acute triangle all of its sides are

no greater than 90 degrees• Obtuse triangles have one angle that

is greater than 90 degrees • A scalene triangle none of its sides

are equal• In an Isosceles Triangle at least 2 of

the sides are equal in length Return to Main Menu

Quick facts about the Square

• A square has 4 equal sides• All of the angles of the square are

equal• Since all of the angles and sides are

equal it can be referred to as a quadrilateral

• The area of the square is length * width

• The perimeter of the square is 4* the side

• A square is also a rectangle Return To Main Menu

Quick Facts About the Hexagon

• the Hexagon is a 6 sided polygon

• When all angles are equal and all sides are equal it is regular, otherwise it is irregular

• Soap bubbles tend to from hexagons

• The shape of the bee hives are also Hexagons

• The Perimeter of the Hexagon is the sum of all its sides

• Each of the six angles measures a total of 120 degrees

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Quick facts about the Octagon

• An Octagon has 8 sides • Its interior angles

measure 135 degrees• The Stop signs are in

the shape of an Octagon

• Octagons symbolize regeneration

• A regular Octagon has exterior angles that measure 45 degrees

• The total of all of the interior angles totals 1080

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Quick Facts about the Rhombus

• A Rhombus is a flat shape

• Has 4 equal straight sides

• Opposite sides are parallel

• Opposite angles are equal

• The infield for baseball is in the shape of a rhombus

• All Rhombuses have 2 diagonals

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Quick facts about Rectangles • Opposite Sides are

parallel• All angles are right

angles • Opposite sides have

the same length • Adjacent sides are

perpendicular • Each rectangle

contains 2 diagonals• Each of the

diagonals intersect in halves

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Quick facts about the Pentagon

• Has 5 sides • Exterior angles are

72 degrees • Interior angles

measure up to 108 degrees

• The sum of all of the inside angles totals 540 degrees

• There are no right angles

• A star has the form of a pentagon

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Quick facts about the Parallelogram

• Opposite sides are equal• Opposite angles are

equal• A Rectangle is a

Parallelogram• A Rhombus is also a

Parallelogram • A square is a

Parallelogram• The altitude (or height)

of a parallelogram is the perpendicular distance from the base to the opposite side

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Which polygon has a total of 5 sides?A) PentagonB)Rhombus

C)Hexagon

D)Octagon

Quiz Question

Answer Choice A: This is correct Great Job A Pentagon has 5 sides

Congratulations you have gotten the question correct you can now proceed to the end Click the arrow below to move to the end

Sorry this answer is incorrect keep trying the Hexagon has six sides

Please try again click the arrow to try again

Sorry that answer is incorrect the Rhombus has four sides

Please keep trying click the arrow to try again

Sorry that answer that is incorrect the Octagon has eight sides

Please try again click the arrow to try again

Congratulations you have completed the lesson on all of the different Polygons and now should have a better understanding of the shapes

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