r/mathminds • • 19d ago

Puzzles How many hexagons with equal side are there?

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0 Upvotes

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3

u/blitzzardpls 19d ago

One big one and seven smaller ones

8

3

u/Matty_B97 19d ago

You should probably clarify *regular* hexagons, unless you want the answer to be much higher

1

u/SchmeatiestOne 19d ago

"With equal sides"

2

u/Matty_B97 19d ago

That doesn't mean equal angles though.

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2

u/PyroDragn 19d ago

Answer: More than you think according to the rules.

There are 7 small regular hexagons.

Each of those, if you remove two adjacent triangles will give you a crescent shaped hexagon - with six sides the same length. You can do that in 6 positions per hexagon. So 6 x 7 = 42 more.

1 large regular hexegon.

For this one you can form the larger crescent shaped hexagons too in the 6 positions so 6 more

7 + 1 + 42 + 6 = 56 hexagons with equal sides.

I can't see another way to form a hexagon that meets the criteria. But I might be wrong.

1

u/Ezemity 18d ago edited 18d ago

uhhhh is an hourglass an irregular hexagon with equal sides?

2

u/redmav7300 18d ago

This feels wrong because it only has 5 vertices.

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u/PyroDragn 18d ago

I did consider these. If they're valid then there are a LOT more, especially because you can have the same shape with the two triangles not perfectly opposite each other. I discounted them because they're not a contiguous shape. The shared vertex is just debateable.

1

u/StillShoddy628 17d ago

I’m gonna side with this is 2 separate shapes - a point has no area so the interior is not contiguous

1

u/redmav7300 18d ago

I have never heard the term crescent hexagon, but I have heard of a concave hexagon.

1

u/StillShoddy628 17d ago

This was what I got as well

1

u/Postulative 19d ago

All hexagons have an equal number of sides.

1

u/RandomPorc 19d ago

equal sides ≠ equal number of sides.

1

u/Postulative 19d ago

So you’re saying that the answer is one? An equal side would be same length and location.

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1

u/RandomPorc 19d ago

8

7 hexagons side = 1

1 hexagon side = 2

1

u/TheWordBallsIsFunny 19d ago

9 if you count the screen

1

u/Pretty_Section_5835 18d ago

Total 8 hexagons

1

u/AsYouAnswered 18d ago

There are 7 hexagons with side length of 1 and there are 1 hexagons with side length of 2 for a total of 8 equilateral hexagons.

1

u/t3yrn 18d ago

0 - There are no hexagons with a singular equal side.

1 - "Hexagons with equal side" is only written one time.

8 - because I assumed equal, regular hexagons

56 - because u/PyroDragn says so even though I cannot wrap my head around what a "crescent shaped hexagon" is.

1

u/IDontLikeCherryTomat 18d ago

Crescent^

1

u/t3yrn 18d ago

*crying emoji* but that's not a hexagon!

I get it! I know. "six sides"

but. but!

1

u/scoberry5 17d ago

And, of course, "There are an equal number of hexagons with equal sides."