izzyalvarez
izzyalvarez
26-05-2018
Mathematics
contestada
PLEASE SOMEONE HELP ME ASAP!!!!!!!
Respuesta :
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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