Question

1
2 3 4
5 6 7 8 9
how many numbers are there in the 30 throw of this number pyramid?
which is the last number in the 30 the row?
which is the sum of all terms in first 30 rows?

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Answer 1

Answer:

900

405450

Step-by-step explanation:

We can see that all the no. are in the last are square number.

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