Question

what are triangular numbers.upto 5th triangular numbers​

Answer 1

Answer:

The sequence of triangular numbers (sequence A000217 in the OEIS), starting at the 0th triangular number, is. 0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630, 666...

Hope you like the answer................

Answer 2

Answer:

${\huge{\red{\underbrace{\mathcal{Answer:-}}}}}$

Numbers whose dot patterns can be arranged as triangles are called Triangular Numbers.

First Five Triangular Numbers : 0,1,3,6,10