Respuesta :

Solution

Consider the illustration below

Using the idea of the illustration above,

[tex]JN\text{ x NK = LN x NM}[/tex][tex]\begin{gathered} x\text{ x 8 = 4 x 20} \\ 8x=80 \\ x=\frac{80}{8} \\ x=10 \end{gathered}[/tex]

The answer is 10

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