JaCrispy111
JaCrispy111 JaCrispy111
  • 06-03-2018
  • Mathematics
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sqdancefan
sqdancefan sqdancefan
  • 10-03-2018
11. Opposite angles of a cyclic quadrilateral are supplementary. You have two angles in the ratio of 2:4 that add to 180°. The larger angle will be 4/(2+4) = 4/6 of 180°, so is 120°.
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