Saurez Vous Répondre Sur Cette Question ? #Olympiad #france

M. C. Escher - Metamorphose II

Expetacular!!!

Uma calculadora para base binária, ou seja, só existem dois algarismos para se representar qualquer quantidade {0, 1}.

Which one are you? 🤠

Uma imagem que representa uma relação muito interessante em matemática. 

A soma de cubos pode ser transformada no quadrado da soma de uma PA. 

#math #matematica #algebra #geometria #demonstração #ulysses bueno #prof ulysses tdb 

Fractal

😯😯😯

Shearer’s geometry puzzles

On his blog MathWithBadDrawings, Ben Orlin reposted a couple of geometrical sangaku-like puzzles by math teacher Catriona Shearer. These are eleven of her personal favorites. If you dare, definitely give them a try!

Transit Across a Purple Sun. What’s the total shaded area?

Shearer’s Emerald. Four squares. What’s the shaded area?

The Pyramid with Two Tombs. Two squares inside an equilateral triangle. What’s the angle?

Setting Sun, Rising Moon. What fraction of the rectangle is shaded?

Hex Hex Six. Both hexagons are regular. How long is the pink line?

Four, Three, Two. What’s the area of this triangle?

The Trinity Quartet. All four triangles are equilateral. What fraction of the rectangle do they cover?

The Falling Domino. This design is made of three 2×1 rectangles. What fraction of it is shaded?

Slices in a Sector. The three colored sections here have the same area. What’s the total area of the square?

Disorientation. The right-angled triangle covers ¼ of the square. What fraction does the isosceles triangle cover?

Sunny Smile Up. What fraction of the circle is shaded?

Piada bilíngue:

Sabe por que a formiga tem 4 patas? Porque se ela tivesse 5 seria uma Fivemiga... 🤣😋😂😆😎😉

More on the Spectre

Images from this great Yoshiaki Araki thread. (If you're interested in tessellations and are twitterpated, he's a must follow.)

He links the Nature article (good and a free read).

Best one, so far:

Robert Farthauer suggests:

And, of course, the actual article, by David Smith, Joseph Samuel Myers, Craig S. Kaplan, and Chaim Goodman-Strauss.

Kaplan gives this illustration of the tile:

He has a one page stop for info about the tiling.

Bonus: via New-Cleckit Dominie