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CA$2.64
per postcard
St. Patrick's Day Geometry Postcard
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Paper Type
Signature Matte
18 pt thickness / 120 lb weight Soft white, soft eggshell texture
-CA$0.24
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St. Patrick's Day Geometry Postcard
Happy St. Patrick's Day to all you math geeks and geometry teachers! This shamrock shows the equation for the area of a circle, diagrams of the circumference, diameter, radius, sector, arc and chord for circles, plus a few other things.
For the truly curious: the small centre circle shows that the angle in a semicircle is always a right angle. The bottom ellipse on the shamrock's stem illustrates how to find the axes of an ellipse. The 2 smaller ellipses in the stem illustrate how to find the foci of an ellipse.
Customer Reviews
4.9 out of 5 stars rating235 Total Reviews
235 Reviews
Reviews for similar products
5 out of 5 stars rating
By susan b.March 28, 2026 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Thank you so much for replacing my cards that were stolen from me during shipping. Its so refreshing to find a company that stands behind its product 100%. That is something we don’t see often in this day and age. Thanks again!
from zazzle.com (US)
5 out of 5 stars rating
By B G.October 27, 2025 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Very nice gold graphic. Cheerful for St. Patrick's day greeting. Good price, and nice quality. I'm pleased.
from zazzle.com (US)
4 out of 5 stars rating
By B G.February 17, 2026 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
The card was great, which I customized on back. However, my 1st order came with envelopes and the 2nd order I just received did not have envelopes. I guess this is a change I did not notice in reordering, but I can't mail them without envelopes!
from zazzle.com (US)
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Product ID: 239112549384785505
Designed on 2013-02-15, 2:23 PM
Rating: G
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