Truss members are made up of all equivalent equilateral triangles. DDAs are used for rasterization of lines, triangles and polygons. The hexagons can be dissected into sets of 6 triangles. In rendering of 3D models, triangles and polygons in space might be primitives. Four isosceles triangles with the apices upwards, representing Shiva or the Masculine. This image shows a tessellation of a disk by triangles and squares. Also, any two similar spherical triangles are congruent. This will use the theory of congruent triangles. Therefore, the triangles and are congruent by SAS. All similar triangles have the same shape. Multiplication was done by mechanisms based on the geometry of similar right triangles. Corrective wave patterns unfold in forms known as zigzags, flats, or triangles. Green or red salsa is poured over the crisp tortilla triangles. It also has indentations for the yellow (golden) irregular triangles along borders. It is equivalent to the theorem about ratios in similar triangles.