Eric Nicholas K's answer to Nabanita bose's Secondary 4 E Maths Singapore question.
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Knowledge needed are
1. Formulae for interior/exterior angles of regular polygon
2. Concepts of triangles, alternate angles etc.
3. Recognising some form of symmetry in the diagram
4. Reasoning (especially for part b)
1. Formulae for interior/exterior angles of regular polygon
2. Concepts of triangles, alternate angles etc.
3. Recognising some form of symmetry in the diagram
4. Reasoning (especially for part b)
Date Posted:
6 years ago
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