to every triangle add one number extra than you add from before e.g.
(+0)0, (+1)1, (+2)3, (+3)6, (+4)10 etc
Is 63 a triangular number I think it is a triangular number.
013
no it is not a triangular number
Decimal triangular number it is
36 is a triangular number, Square number and also a Consecutive number.
They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.
No, 324 is not a triangular number!
No, 18 is not a triangular number.
No, 35 is not a triangular number.
yes it is a triangular number
No, 172 is not a triangular number.
No, 33 is not a triangular number.