1. Introduction to polygons
Geometry
5th Grade
Mr. Freedman
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2. The Different Types Of polygons
Click on a Polygon to get started or click the name below
Triangle
Square
Hexagon
Octagon
Rhombus
Rectangle
Pentagon
Parallelogram

3. 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
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4. 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
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5. 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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6. 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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7. 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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8. 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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9. 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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10. 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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11. A) Pentagon B)Rhombus C)Hexagon D)Octagon
Quiz Question
Which polygon has a total of 5 sides?
A) Pentagon
B)Rhombus
C)Hexagon
D)Octagon

12. 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

13. Sorry this answer is incorrect keep trying the Hexagon has six sides
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14. Sorry that answer is incorrect the Rhombus has four sides
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15. Sorry that answer that is incorrect the Octagon has eight sides
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16. 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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