Mathaddict100's answer to Joanne's Secondary 4 A Maths Singapore question.

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Mathaddict100
Mathaddict100's answer
534 answers (A Helpful Person)
Part ii)
Mathaddict100
Mathaddict100
5 years ago
Alternately,to find the radius with a shortest way possible is to minus the y-coordinate of the highest point to it's centre...There you'll have 5 units... :)