Triangles In Art

Isabel Martin
Ms. Vasili, Geometry

The triangle in The Vanishing Point is an acute triangle. It is also an isosceles triangle.
The triangle in The Penrose Triangle is equilateral and acute.
The image in Fractal Art has many triangles. Most of which are isosceles and acute.
The triangles in Sierpinski's Triangle are all equilateral and acute.
The triangle that made up the torso in Petroglyphs is an acute triangle and resembles an equilateral triangle.
The largest triangle in Cubism (the large blue on near the cat's tail) is an obtuse triangle. It also resembles an isosceles.

Cubism

Cubism was an experimental art movement in the 20th century which was a very abstract way of painting that often included geometric shapes. Pablo Picasso and Georges Braque primarily led the Cubism movement.

Petroglyphs

Ancient Native American and African tribes often used triangles to depict a human torso. They would often use them in petroglyphs, or rock carvings. 

The Vanishing Point

The vanishing point, often abbreciated as V.P., is a special trick used by artists to make their pictures look as if they are going back
into the distance.(This is also called perspective.) The sight line is the base of the triangle and the other lines connecting to the V.P. are the legs.

The Penrose Triangle

The Penrose triangle, also known as the Penrose tribar, is an impossible object. It was first created by the Swedish artist oscar Reutersvard in 1934. The mathematician Roger Penrose independently devised and popularised it in the 1950s, describing it as "impossibility in its purest form". It is featured prominently in the works of artist M.C. Escher, whose earlier depictions of impossible objects partly inspired it.

Fractal Art

Fractal artists use math to draw a self-similar fractal shape and, using a special computer program.
They spin, twist, stretch, repeat, colour, flip and rotate the shape with some amazing results

Sierpinski's Triangle

Triangles within triangles within triangles
within triangles.

..and all of them are self-similar

This is also fractal art