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Hope this helps
Date Posted:
1 year ago
Hi, thank you very much for the answer. May i know why square ABCD = 578 / 2 ? Is it a standard rule? Thank you.
As two line you drew, AC and DB has divided the big square PQRS into 4 small squares, each square is divided half by square ABCD, hence square ABCD is half the square PQRS
Ahh.. got it now. Thank you very much for the teaching. Appreciate.