Aloysius Yong's answer to Nicole's Secondary 4 E Maths Singapore question.

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Aloysius Yong
Aloysius Yong's answer
18 answers (Tutor Details)
1st
Recall your circle properties, when a triangle is formed with two points on the circumference and one line being the diameter, it will form a right angled triangle. From there, think of the properties of the right angled triangle that can be tested with 3 lengths!