Math, asked by ravindarmishra122385, 9 months ago

5. If 3 is the first triangular number, which is the tenth one?

Answers

Answered by drrekhasingh1101

7

66 is the tenth triangular number

please mark as the brainliest

Answered by rayblade090

3

Answer:

55

Step-by-step explanation:

1, 3, 6, 10, 15, 21, 28, 36, 45, 55

The formula for calculating the nth triangular number is: T = (n)(n + 1) / 2.

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