allison0210 allison0210
  • 16-04-2021
  • Mathematics
contestada

A square has side length 3 units. What is the length of the diagonal?

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sqdancefan
sqdancefan sqdancefan
  • 17-04-2021

9514 1404 393

Answer:

  C. 3√2 units

Step-by-step explanation:

The diagonal of a square is √2 times the side length. For a square with side length 3, the diagonal is 3√2.

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If you like, you can see this using the Pythagorean theorem.

  d² = s² + s² . . . . . where d is the diagonal, and s is the side

  d² = 2s²

  d = √(2s²) = s√2

For s=3, ...

  d = 3√2

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