Respuesta :

11^2 - 3.9^2 = x^2
x = 10.3

Answer:

The missing side is 10.25

Step-by-step explanation:

Step 1: Use Pythagorean Theorem

[tex]11^{2} = 3.9^{2} + x^{2} \\121 = 15.21 + x^{2}\\121 - 15.21 = x^{2} \\105.79 = x^{2} \\\sqrt{105.79} = \sqrt{x^{2} } \\x = 10.285[/tex]

Therefore the missing side is 10.285