2 years ago

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

Mathematics

1 answer:

ella [17]2 years ago

4 0

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.

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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