ONG PAN HAO GERALD's answer to wheeparty's Secondary 3 A Maths Singapore question.

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ONG PAN HAO GERALD
Ong Pan Hao Gerald's answer
9 answers (Tutor Details)
1st
The tough part was part b, took me awhile too. By drawing the trapezium, it allows me see an isosceles right angled triangle, therefore u do the Pythagoras theorem from there and u will get the answer.