skkhoury skkhoury

07-10-2021
Mathematics

contestada

What is the triangular number of 27

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glenika glenika

07-10-2021

The triangular number of 27 is 378

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lynnkc2000 lynnkc2000

07-10-2021

Answer:

378

Step-by-step explanation:

nth triangular number: n(n+1) / 2

27th triangular number: 27(27+1) / 2 = 27*28 / 2 = 378

Answer Link

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