The AOB angle is set to 90 °. The OC beam is drawn in the inner region of the angle AOB. OD is the bisector of COB.
| December 11, 2020 | education
The AOB angle is set to 90 °. The OC beam is drawn in the inner region of the angle AOB. OD is the bisector of COB. Find COD if DOA is known to be 70 degrees
Decision:
angle AOB = angle DOA + angle DOB angle DOB = angle AOB – angle DOA angle DOB = 90 ° -70 ° = 20 ° since OD-bisector of angle COB => angle DOB = angle COD = 20 °
Answer: angle COD = 20 °
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