#maths, #jeux, #enigmes, #goldenratio Reciprocal functions What's the area of the square ? 😃

Lewis Carroll invented one of the fastest algorithms for computing determinants while publishing his most famous novel "Alice in Wonderland" (1865).

The blue and green shaded regions created by these three squares have the same area. What’s the angle?

coordinates of B ?

How Full Is The Bottle?

N°81

What fraction of this regular hexagon is shaded?

Two squares and two equilateral triangles. The pink colored area is 4. What's the blue colored area? #GeometryDash #puzzles

The Pythagorean theorem seen in different geometries GeoGebra geogebra.org/u/daniel+mentr……… #geogebra #math #science #iteachmath #mtbos #visualization #elearning @geometry Bernat ANCOCHEA #Physics

What fraction of the total area is shaded?

Je viens de retrouver cet exercice, qui a déjà une dizaine d'années 😟. J'aime toujours bien.

Andrzej Komisarski Diego Rattaggi 🇨🇭 Catriona Agg Le Bécachel Sébastien Henk Reuling All green triangles have the same area and are two-to-two congruent. Because the two angles between hexagon and equilateral triangle are supplementary.

Oh Pascal you rascal!

Simple, physical example that shows why 2^0 = 1. youtu.be/FD9LJXqYfLQ #MTBoS #ITeachMath #math #maths #mathematics #alg1 #algebra #mathchat

Probability math art with hexagons

Typo corrected and ppt added.

Three rectangles and a semicircle. Yellow rectangle and blue rectangle make a square. Show that, Yellow Area= Red Area + Blue Area.

Bar models are a useful tool to introduce solving equations with unknowns on both sides. mathsbot.com/manipulatives/… mathsbot.com/printables/bars

Ramanujan solving integrals in his head