See Zhe Xun's answer to Yos's Secondary 4 E Maths Singapore question

Zhe Xun's answer to Yos's Secondary 4 E Maths Singapore question.

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Hope this helps. Note that the quadrilateral is not necessarily that shape as i just assume AD is a horizontal line for convenience

Date Posted: 4 years ago

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Zhe Xun

4 years ago

Not sure if this is true but quadrilateral naming(e.g ABDC, ACDB) have different meaning as the points are in clockwise order

So to say my solution is quadrilateral ADCB instead of ABCD