Respuesta :

The correct answer is 8.6. This is because to find the find the length of the diagonal you have to do the square root of the two sides squared. This means that 5^2+7^2=74 and the square root of 74 is approximately 8.6.

Answer:

8.6

Step-by-step explanation:

Let's find the length of the diagonal:

Information:

- Width = 5

- Length = 7

Using this information, we can solve for the diagonal.

The diagonal line makes 2 identical right triangles.

We need to find the hypotenuse which is the diagonal line.

Formula = a^2 + b^2 = c^2

A = 5

B = 7

Plug into formula.

5^2 + 7^2 = c^2

Simplify.

25 + 49 = c^2

Simplify again.

74 = c^2

[tex]\sqrt{74}[/tex] ≈ 8.6

The length of the diagonal line is 8.6.

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