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Ghella [55]
3 years ago
15

Can anyone please help with this question?

Mathematics
1 answer:
vitfil [10]3 years ago
6 0
The middle section is n(n+1)

The top row is n+2

The bottom row is 2n+1

So the rule for the total number of tiles will be the sum of the above rules...

s(n)=n(n+1)+n+2+2n+1

s(n)=n^2+n+n+2+2n+1

s(n)=n^2+4n+3
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Answer:

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