Question

write the twenty sixth triangular number​

Answer 1

Answer:

This is the Triangular Number Sequence: 1, 3, 6, 10, 15, 21, 28, 36, 45, ...

Answer 2

Answer:

325

Step-by-step explanation:

The traingular numbers are number which can be expressed as triangle with the help of dots.

The series goes like :

0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325

In this series the 26th number is 325.

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