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Anonymous Anonymous
  • 12-08-2016
  • Mathematics
Answered

ASAP .
In the figure below, O is the centre of a circle where Angle OCD is an equilateral triangle. Angle OAB=20 and Angle AOD=127. Find Angle BOC.

ASAP . In the figure below, O is the centre of a circle where Angle OCD is an equilateral triangle. Angle OAB=20 and Angle AOD=127. Find Angle BOC. class=

Verified Answer :

caylus
caylus caylus
  • 13-08-2016

Hello,

\(\widehat{BOC}=33\)°
triangle AOB is isoscele ==> \(\widehat{OBA}=20\)°
\(\widehat{AOB}=180-40=140\)°
\(\widehat{BOC}=360-60-127-140=33\)°






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