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A Hole In The Middle

Geometry Level 1

$\Large \underbrace{2^2 +2^2 + 2^2 + \cdots +2^2}_{12 \text{ times}} = \, ?$

8^2-2^2

8^2-4^2

8^2-6^2

6^2-4^2

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by Chung Kevin

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