496 triangles in a 10 x 10 x 10 triangle
The flag of Qatar consists of a serrated line with nine points, so technically there are no triangles. If one considers each point to be a triangle extension of the solid color, then there are 19 triangles (9 white, 10 red).
10 triangles make a decagon
10 triangles
10-2 = 8 triangles
Yup, it follows the 3, 4, 5 rule (or in this case 6, 8, 10). Triangles with those ratios in the lengths of its sides are always right triangles
There are 3 to 10 triangles in a star.
The flag of Qatar consists of a serrated line with nine points, so technically there are no triangles. If one considers each point to be a triangle extension of the solid color, then there are 19 triangles (9 white, 10 red).
A decagon has ten sides and a triangle has three, so 5 decagons and 4 triangles have (5*10)+(4*3) = 62 sides altogether.
10 triangles make a decagon
10 triangles
10 triangles....
10-2 = 8 triangles
Triangles are needed to form polygons of 3 sides or more as for instance a 6 sided hexagon needs 4 triangles and a 10 sided decagon needs 8 triangles.
Yup, it follows the 3, 4, 5 rule (or in this case 6, 8, 10). Triangles with those ratios in the lengths of its sides are always right triangles
A triangle's angles must sum to 180 degrees. In this case, the angles measure 120, 40, and 10 degrees, which add up to 170 degrees. Since the sum is not equal to 180 degrees, these angles cannot form a triangle. Therefore, no triangles can be constructed with these angle measures.
There cannot be parallel lines in any [plane] triangles.
No. For example the triangles with sides {3, 4, 5} and {6, 8, 10} are similar but not congruent.