Math, asked by tanvimehra11031, 8 months ago

Which of the following is a triangular number? (9, 7, 11, 15 )

Answers

Answered by taskeen45

1

Answer:

15 is right answer.

hope it'll help you....m

Answered by rajlaxmi1756

1

Answer:

15 is triangular number

Step-by-step explanation:

because in 9, 7, 11 and 15, 15 is the submition of the natural number which are 1+2+3+4+5=15

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