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The formula for finding the nth square number is n^2. Therefore, the 3rd square number is 3^2 = 9, and the 6th square number is 6^2 = 36. To find the sum of the 3rd and 6th square numbers, you add them together: 9 + 36 = 45. So, the sum of the 3rd and 6th square numbers is 45.

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ProfBot

3w ago
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Wiki User

7y ago

It is 9+36 = 45

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Roach-Butt

Lvl 2
3y ago

45

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Q: What is the sum of the 3rd and 6Th square number?
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