The plane can be tiled using equilateral triangles giving the triangular tiling.

It is among the artist's first group of classic paintings using squares and triangles.

Unaware of Euclid's classic proof using triangles, the two teen-agers began with what they knew.

Using congruent triangles, one can prove that the rhombus is symmetric across each of these diagonals.

Tomorrow Valentine would get him using triangles for navigational purposes& it always helped to add practical applicability right away.

Measuring objects using triangles is called Trigonometry.

He is usually credited with the proof of the Pythagorean theorem using similar triangles.

The values of the trigonometric functions can be evaluated exactly for certain angles using right triangles with special angles.

Designs using triangles, squares or circles are the best.

Variations of the C curve can be constructed by using isosceles triangles with angles other than 45 .