Formula for face diagonal?

asked Dec 5, 2022 71.3k views

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face diagonal = √(a² + a²) = √2a² = a√2 - it's our cube face diagonal

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Answer:

Face diagonal of a cube:

Explanation:

f2 = a2 + a. Then f2 = 2a.

DaTebe answered Dec 11, 2022

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