Question

9

Which of the following numbers does not belong to the given set of triangular numbers? 15, 21, 29, 36, 45

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Answer 1

Answer:

This is the Triangular Number Sequence:

1, 3, 6, 10, 15, 21, 28, 36, 45.

It is simply the number of dots in each triangular pattern:

29 does not belong to the set of the triangular numbers.

Step-by-step explanation:

Hope this answer will be helpful..