KOK YEN HAU's answer to Rhea's Primary 6 Maths Geometry Singapore question.

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KOK YEN HAU
Kok Yen Hau's answer
63 answers (Tutor Details)
1st
I think the angle w indeed equals to (180deg - 68deg) which is 112deg. So I think your answer is correct maybe you can ask the teacher whats wrong.