Circle-Square-String Theory

I am the Diva´s challenge this week is about Circle-Square-String-Theory. This is the Divine Geometry! I do love Geometry. That was the part of mathematics in school I felt motivation to learn and I also in a strange way was good at it! I could sit and draw triangles, Squares and Circles for a very long time trying to figure out the way they worked together. I wanted them to be exact to be good enough. So for this challenge I did use a stencil for the circle and a ruler for the Square. Just to get back to that state of mind I used to be in doing such things at school. I worked on a 3Z since I also wanted the triangle to be present!

I won´t use those things regularly doing zentangle since I do like the freehand nonperfectional way to do it! But here it is with the patterns 5C Aura by Ina Sonnenmoser and Tipple (Zt). I found 5C Aura at Melinda Barlows blog here and I did like the pattern at once. So easy to learn and so much zen doing it! Thank´s Melinda!