Geometria

65 Pins

11y

a split rail fence in front of trees with yellow leaves on the ground and green grass

old wooden fence

This beautiful tablet, which contains twelve problems, was hung in 1865 at he Kinshouzan shrine in the Gifu Prefecture. The third problem from the right was presented by a sixteen-year-old girl.

an image of three balls with the same area for each one to be divided by two lines

Hung in a temple in Nagano in 1811.

an image of a purple and gray object with two circles on the top one side

Circles Inscribed in Squares: 7 Hard Geometry Problems & Solutions

circle inscribed in quarter circle

three pieces of wood with different designs on them

This triple tablet was hung in 1797 in the Onnma shrine in the Aichi prefecture and contains 30 problems. It measures 520 centimeters by 26.

a triangle with three circles in the middle and one at the top that has four dots on it

In an equilateral triangle "regularly" shared in four triangles, the incircles of these four triangles are equal, with radius r. Value of r, the triangle side as unit

a tall brick chimney sitting next to a street light on top of a metal pole

Turku, Finland

30秒の心象風景3557・算額の絵馬～高砂市・生石神社

sangaku

an animal's paw and foot are painted on wooden planks with orange balls

Kitano Tenmangu Sangaku 1 (北野天満宮算額 1 )

Sangaku mathematical tablet from the Kyoto Kitano Tenmangu Shrine. This is the head shrine on Honshu dedicated to Tenjin (天神), the Shinto kami of scholarship.

Myojorinji Temple, 1865, Kyoto . Devoted to the temple by the Asano school, the tablet boasted eleven geometry problems with answers (but, of course, no solutions), each with a meticulously crafted colored diagram.