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Triangle ABE + Triangle DEC = Triangle ADE + Triangle BEC

Note: Pls refer to https://www.kiasuparents.com/kiasu/question/110776-2/#post-110786

Triangle ABE + 60 = 24 + 58

Triangle ABE= 22 cm²

Area of rectangle ABCD = 2(60 + 22) cm²

Triangle BCD = Area of rectangle ABCD /2 = 82 cm²

Shaded area = 82 – 22 – 24 = 36 cm²

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