The nth triangular number is 0.5*n*(n+1)
Chat with our AI personalities
What is the formula for a triangular prism
Triangle numbers or triangular numbers are those numbers that can form an equilateral triangle when counting the objects. The first five triangular numbers are: 1, 3, 6, 10, 15.
6 and 10 are triangular numbers that make 16.
It depends on triangular what: pyramid, dipyramid, prism, ...
the answer is of course 12