dhshshshsb dhshshshsb
  • 02-06-2020
  • Mathematics
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PLEASE HELP

Find the length of BC

PLEASE HELP Find the length of BC class=

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yohanna69
yohanna69 yohanna69
  • 02-06-2020

Answer:

BC or n=72

Step-by-step explanation:

ABC≈DEF

[tex]\frac{AB}{DE} =\frac{BC}{EF}=\frac{AC}{DF}=k[/tex]

[tex]\frac{54}{9} =\frac{n}{12}[/tex]

[tex]9n=54*12[/tex]

[tex]9n=648[/tex]  (then divide both sides by 9.)

[tex]n=72[/tex]

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