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Continue to ChatSegi Tiga Bersudut Tegak : 5.1a Nisbah Trigonometri 1 - PT3 Matematik : Siapa yang jawab segitiga bersudut tegak, dia lagi betul!! - https://sank-ka.blogspot.com/2021/05/segi-tiga-bersudut-tegak-51a-nisbah.html