First, draw a dot. Below that, draw two dots. Then, 3 dots below it and so on.
Here, you should see the pattern of the triangular number, which is the sum of consecutive integers starting at 1. The terms of that pattern are 1, 3, 6, 10, 15, ....n(1 + n)/2 where n is the total number of dots for the pattern.
Is 63 a triangular number I think it is a triangular number.
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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, 35 is not a triangular number.
No, 18 is not a triangular number.
yes it is a triangular number
No, 172 is not a triangular number.
No, 53 is not a triangular number.