Jia Earn Lim's answer to Chori's Secondary 3 A Maths Singapore question.
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I hope this helps :)
Date Posted:
1 year ago
I see, thx for the explanation, but why do we need to find the length of each "excluded" side to get x? Or is it just to get a value of x? If it's just to get a value of x, why can't we use x=4 instead?
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