Question

${h}^{2} = ( \sqrt{2 - 1} ) { }^{2} + (1) {}^{2}$
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Answer 1

Answer:

$h {}^{2} = ( \sqrt{2 - 1} ) {}^{2} + (1) {}^{2} \\ h {}^{2} = 1 + 1 \\ h = \sqrt{2}$

hope it helps