izzyalvarez izzyalvarez
  • 26-05-2018
  • Mathematics
contestada

PLEASE SOMEONE HELP ME ASAP!!!!!!!

PLEASE SOMEONE HELP ME ASAP class=
PLEASE SOMEONE HELP ME ASAP class=

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gmany
gmany gmany
  • 30-05-2018
Look at the picture.
Use the Pythagorean theorem:
[tex]|DF|^2+11^2=(11\sqrt3)^2\\\\|DF|^2+121=121\cdot3\\\\|DF|^2+121=363\ \ \ |-121\\\\|DF|^2=242\to|DF|=\sqrt{242}\\\\|DF|\approx15.6\ inches.[/tex]

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