Respuesta :

devishri1977

Answer:

x = [tex]2\sqrt{5}[/tex]

Step-by-step explanation:

Use Pythagorean theorem,

Hypotenuse² = base² + altitude²

x² = (√8)² + 4²

  =  8 + 16

  = 20

x = √20 = [tex]\sqrt{2*2*5} = 2\sqrt{5}[/tex]

x = [tex]2\sqrt{5}[/tex]

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