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### Horizontal and Vertical Symmetry

```
Date: 10/27/2001 at 15:44:29
From: Lizzy
Subject: Symmetry

I have a project where I have to look for things outside that involve
symmetry. One of the things I have to find is an example of
horizontal symmetry, and I have no idea what that is. I tried to look
it up in a dictionary but it just is not making any sense.

```

```
Date: 10/27/2001 at 16:18:39
From: Doctor Sarah
Subject: Re: Symmetry

Hi Lizzy - thanks for writing to Dr. Math.

Let's take some simple examples:
|
VERTICAL SYMMETRY: if you draw a vertical line    |
|

down the middle of an object with vertical symmetry, the two sides
will be mirror images of each other.

Examples of capital letters that have vertical symmetry are:

A H I M O T U V W X Y

HORIZONTAL SYMMETRY: if you draw a horizontal line  ______________

across the middle of an object with horizontal symmetry, the top will
be a mirror image of the bottom.

Examples of capital letters that have horizontal symmetry are:

B C D E H I K O X

Words with horizontal symmetry include:

ICEBOX, DECIDED, EXCEEDED, CHECKBOOK, OKEECHOBEE, HIDE, CHOICE

Figure 2 on this Web page (Symmetry about the x-axis) shows horizontal
symmetry:

http://www.minerals.net/glossary/terms/s/symmetry.htm

Some flags have horizontal symmetry; here are a few of them:

Austria
http://www.crwflags.com/fotw/flags/at.html
Bahamas
http://www.crwflags.com/fotw/flags/bs.html
Bahrain
http://www.crwflags.com/fotw/flags/bh.html
http://www.crwflags.com/fotw/flags/bd.html
Belgium
http://www.crwflags.com/fotw/flags/be.html

column A2):

http://www.crwflags.com/fotw/flags/iso3166.html

Does this help?

- Doctor Sarah, The Math Forum
http://mathforum.org/dr.math/
```

```
Date: 10/27/2001 at 16:27:27
From: Lizzy
Subject: Re: Symmetry

Thank you so much.. That explains it all!
```
Associated Topics:
High School Symmetry/Tessellations

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