82. 1, 3, 6, 10, 15, 21 ....
(a) 23
(c) 28
(6) 24
(d) 30
Answers
Answered by
1
Answer:
The answer is letter : C
Answered by
2
Answer:
28
Step-by-step explanation:
it is simplify the no. of dots in each triangular pattern
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