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primary 5 | Maths
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Ainin Ali
Ainin Ali

primary 5 chevron_right Maths

Can someone help me with this question and actually i have already done it but i still get it wrong.

Date Posted: 7 years ago
Views: 888
Craig Choy Ching Fung
Craig Choy Ching Fung
7 years ago
Hi there! Since line AD is a straight line, the sum of angle AOB and BOD is 180 degrees, so to find angle BOD, simply take 180 minus angle AOB of 110 degrees to get 70 degrees. For a circle, the sum of angles is 360 degrees. So the sum of angles AOC and COB is 360-110= 250 degrees. The question stated angle AOC = angle BOC, so to find angle AOC, simply take 250 divided by 2 to get 125 degrees! Hope it helps!

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Victoria Ho
Victoria Ho's answer
20 answers (A Helpful Person)
1st
AOC=125
BOD =70
Ainin Ali
Ainin Ali
7 years ago
Thank you