Respuesta :

mhanifa

Answer:

  • x = 20, MN = 36

Step-by-step explanation:

It is assumed the triangles in the picture are similar.

As per similarity, the ratio of corresponding sides is same.

Compare the ratios and find the value of x:

  • MN/JK = MP/JL
  • (2x - 4)/12 = 15/5
  • (x - 2)/6 = 3
  • x - 2 = 18
  • x = 20

Find the length of MN:

  • MN = 2*20 - 4 = 40 - 4 = 36

[tex]\\ \sf\longmapsto \dfrac{12}{5}=\dfrac{2x-4}{15}[/tex]

[tex]\\ \sf\longmapsto 15(12)=5(2x-4)[/tex]

[tex]\\ \sf\longmapsto 180=10x-20[/tex]

[tex]\\ \sf\longmapsto 10x=200[/tex]

[tex]\\ \sf\longmapsto x=20[/tex]

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