Brian Chiong's answer to I am not smart's Secondary 2 Maths Singapore question.

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Brian Chiong
Brian Chiong's answer
44 answers (Tutor Details)
1st
Since BN is a common height for both of the triangles ABN and NBC, I can use Pythagorean theorem to generate simultaneous equations. Hope this helps!
I am not smart
I Am Not Smart
3 years ago
Thank you very much!it did help!