![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgS8RPePqy8h1HUz7JMmjGNCJJ8k0WPOTXTQdi0Hy_BQeLUbzBpHgt34wonGwbRen7uxxTZq-VE3nss3oEzUJJhlWwmrT1h46Qs7RDVFVdswER_yLnt9FVy_7GN40xnNn38QQWx/s160/P1290018.JPG)
I'm not feeling so well today, so here's some pictures from my recently-retired Art Book. This is a based on
a photo of a c. 1420 CE floor marble tile design from a church, attributed to
Uccello.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg25skMNR5fP7FYjX-0M5oRdtJTZIHecBoCcU0JlLiAX7WCo2ckfnktb6sRfRV9r4y-ors8GFo0xJdq8inIzaywyYE-ug3z15rOp6RIcJX9YDZL-H8zqG0lY3MFA-ehj7WPI0gh/s160/P1290031.JPG)
Here's another way to make pentagons. It can be adapted to inscribe any regular polygon within a circle; make n equal to the number of segments in line AB, draw a line from point C through the second point on line AB.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxIaz8RSOa6BbEpZ_8fVJAU2oD5BzM-oGbPY-HOrtHUV6ktNlRTYHBwHvrUgrW_GDovW10W9cJito2qBhWePCCZMEjdOvBWSk4IiYPzYWvrlRKZEbf2zRn7ih4RX6UmIG5tzIK/s160/P1290022.JPG)
I should finish this... I thought it would be fun to make a design with a Middle-Eastern feel to it, the sort of design found in Islamic mosaic tile work.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqtmnHVXzdj2lOnTbwwb5DcTahUoftAS5zh5DThCkDVxFVk0sIeMTDw_r-o9amIFQZsEfvLG96-ixTZ-UTt6AlQ6j0MBf_APEDENUkoFjams_hzIZb4SLnVS-KEgYU_Ubi295d/s160/P1290021.JPG)
Not a pentagon, but it is based on constructing squares within golden rectangles. I can't decide if this design would make a good alb or not.
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