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secondary 3 | A Maths
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secondary 3 chevron_right A Maths chevron_right Singapore

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Date Posted: 2 months ago
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Ghazi Emir
Ghazi Emir's answer
16 answers (Tutor Details)
First express A+B as 180–C, then make use of the addition formula to get the final answer. Hope this helps, feel free to clarify any doubts :)