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Free shipping on purchases of $35 or more!
Educational Short-Sleeve Unisex T-Shirt. Graphical Proof of Pythagorean Theorem using 3-4-5 Triangle.
Peter on Dec 20, 20195 out of 5 stars
Awesome design, great quality product, great price, and fast delivery! Arrived with plenty of time to spare ahead of Christmas! My niece will love it! Thanks so much HybridGraphix!
Dianne on Jul 21, 20195 out of 5 stars
I love this T shirt with a message! Plus it's printed on a good quality cotton that feels great to wear. It was easy to order and arrived on time. I requested a v-neck option for my next purchase and found the shop owner courteous and quick to respond! Highly recommended.
Our Team Mission
Our mission is to share our fun, unique, mindful, and mind-expanding designs that exercise the positive neural pathways of humankind thereby promoting a better future for all. We're a family team actively being the change we want to see! We're new to Etsy, but trust that we'll be here for the duration.
Designer, Illustrator, Marketer
P.S. is a materials scientist, number theorist, author/illustrator, and father. He specializes in alternative energy, aerospace, and microelectronics engineering.
Designer, Artist, Marketer
Kai is a student who enjoys cartoons, drawing, photography, videography and cosplay.
Human Resources, Customer Service, Owner
Sage, philosopher, mentor.
Horse Sense Publications
This is the publisher of P.S. Willams' two books: "Natural Number" and "Elements of Dimensional Geometry" both available at NaturalNumber.com, Horse Sense Publications holds copyrights to some of the graphic designs in this shop.
Print-on-demand drop shipper
A fulfillment, warehousing, and shipping service for small online retailers.
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