How many pentagons on a football ? ©. 1 © 1 2 ©

How many pentagons on a

football ?

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1

©

1

2

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1

2 3

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1

2

4

3

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1

2

5

4

3

©

16

2

5

4

3

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6 on the front

16

2

5

4

3

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and 6 on the back

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6 + 6 = 12

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You cannot make a ball using only

hexagons

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hexagons stay flat

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but 20 hexagons

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and 12 pentagons

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make a football

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Can you find a hexagon in this fly’s eye

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Now find a pentagon

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Find a hexagon on this tortoise shell

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Now find a pentagon

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Without pentagons the

shell would be flat

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Find the pentagons in the other pictures at home

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Buckminster Fuller’s Geodesic Dome at Expo 67 in Montreal©

Find the pentagon here at home

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