nope
If it is 19 sided it cannot be a triangle. The "tri" in the word triangle means 3. So a triangle can have only 3 sides - no more, no fewer!
It is 48.
28 is a triangle number. The 28th triangle number is 406.
The third triangle number is 6.
The fifth triangle number, known as T5 is 15.
No. Triangle numbers are a fixed set of numbers that can't be altered to make one certain number turn into a triangle number.
A triangular number or triangle number counts the objects that can form an equilateral triangle. 10 objects can be formed into an equilateral triangle.
The area of a triangle can be a rational number or an irrational number depending on its dimensions.
American Gothic - 1995 Triangle 1-19 was released on: USA: 10 July 1996
The Nth term for a triangle number is: 0.5n(n+1)
the number of obtuse angle in a right triangle is zer0
The fewest number of right angles in a triangle is zero.