sparkleon200
sparkleon200 sparkleon200
  • 28-12-2019
  • Mathematics
contestada

I don’t know how to do this

I dont know how to do this class=

Respuesta :

nonsibi
nonsibi nonsibi
  • 28-12-2019

Use proportions because we know that the triangles are similar.

[tex]\frac{20}{28}=\frac{5}{x}[/tex]

Cross multiply.

20x=28×5

x=7

answer: 7

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