Math, asked by anyasha254, 9 hours ago

6th triangular number

Answers

Answered by hmhabib001122

0

Answer:

6th triangular number is 21.

Answered by kk5767810

2

Answer:

21

Step-by-step explanation:

T1=1

T2=3

T3=6

T4=10

T5=15

T6=21

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