sstrike's answer to Nezuko 12345's Secondary 4 A Maths Singapore question.

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sstrike
Sstrike's answer
5566 answers (A Helpful Person)
key concepts
①【basic angle】
②【butterfly】

130° = 180°-50°

.... believe u can proceed from here
Nezuko 12345
Nezuko 12345
8 months ago
Oh I see thanks ☺️