Nia Mokhtar's answer to Luis Tan's Primary 6 Maths Geometry Singapore question.
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Firstly you have to find the value for OCD and ODC. Both are 54° (since they are isosceles).
Every straight lines = 180° in total.
Then find values for triangle AOD and BOC. Note that the interiour angles are defined by :-
(n-2) × 180° where n is the number of edges.
Every straight lines = 180° in total.
Then find values for triangle AOD and BOC. Note that the interiour angles are defined by :-
(n-2) × 180° where n is the number of edges.
Date Posted:
5 years ago
Triangle AOB is sadly not isosceles though.
Thank you brother
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