Christmas MT's answer to Jing Yi Ang's Junior College 2 H2 Maths question.
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Since point A is on circumference of bigger circle, OA is the radius of the bigger circle. AB is x because its half of the length of the metal sheet (need to make angle ABO =90) so that pythagoras theorem can be used.
Hope this helps!
Hope this helps!
Date Posted:
7 years ago
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