Arnold K H Tan's answer to genevieve's Secondary 3 A Maths Singapore question.

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Arnold K H Tan
Arnold K H Tan's answer
2108 answers (A Helpful Person)
1st
You need to rotate the diagram to view from different angles, to help. Also link: if there's a centre of circle, it either involves an isosceles triangle if 2 radius are present, or angle at centre = 2 x angle at circumference.
genevieve
Genevieve
4 years ago
Thanks a lot!!!