Today, the calendar makes a right triangle, for the last time this century.
This Saturday is October 24, 2026.
Write it as 10/24/26 or 24/10/26, and the same beautiful relationship appears:
10² + 24² = 26²
100 + 576 = 676
But here’s what makes today special.
There are infinitely many Pythagorean triples. Only a handful fit our calendar.
Using the rule
month² + day² = (last two digits of the year)²,
the month cannot exceed 12, and the day cannot exceed 31. Those small limits leave exactly 12 qualifying dates in this century.
Today is the last.
The next will be March 4, 2105:
3² + 4² = 5²
That is a wait of more than 78 years.
An infinite family of triangles. Just twelve appearances on a century’s calendar.
Happy Pythagorean Triple Day.
The popular Pythagorean theorem water demo visualizes the equation:
a² + b² = c²
using water. The two smaller squares of water pour perfectly and equally into the area of the larger square on the longer side.
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Our stalwart teachers & Supervisor Kelly Camm going strong w/Math PD as the sun sets outside the windows…proof (as if needed) the teacher day goes well beyond afternoon…proof that math isn’t just math, it’s also reading, & interdisciplinary, contextual & more @EveshamSchool
Congratulations Ally Marchesani on your new position as a 6th grade math teacher at Marlton Middle School this upcoming fall. Way to go Ally!! @DrMulvaney @DrGeorge_MU@MUSOEleadership
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A Message from Chief Kempf:
On behalf of the men and women of the Cherry Hill Police Department I want to extend our heartfelt sympathy to the victims and their families of the Robb Elementary shooting in Texas yesterday.
Tomorrow is the day of the iconic number of math and the International Day of Mathematics! Did you check the activities and resources on https://t.co/bXJlXlmvlE ? #piday#piday2022#IDM2022#mathteachers#mtbos#iteachmath
Special Education Day commemorates the anniversary of our nation’s first federal special education law, the Individuals with Disabilities Education Act. Thank you to all who are committed to providing our special education students with an equitable educational experience✨💚🤝