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Number theory Difficulty 1.4 Junior Find the answer Canada

The value of $\sqrt{81}$ is equal to

Pick one

Solution

Evaluating, $\sqrt{81}=9$ and $9=3^2$ , so $\sqrt{81}=3^2$ .

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.