Question

How to find triangular no.s?​

Answer 1

Answer:

sorry mate i m not understanding

Answer 2

Triangular numbers are the sum of natural numbers

Equation to find the sum of natural numbers = (n×(n+1)) /2

Let's check ,

First Triangular number = (1×2) / 2 =1

Second Triangular number = (2×3)/2 = 3

Third Triangular number = (3×4) / 2 =6

Fourth Triangular number = (4×5) /2 =10

Hope this will help....