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Dunyo Matematikasi
4 Jan, 00:51
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#savol MS uchun
ABCD to'g'ri to'rtburchakni d chiziqga ko'ra A uchi atrofida 90° ga burib AB'C'D' to'g'ri to'rtburchak hosil qilindi.
|CB'|=? yani CB' qiymatini toping.
P.S: Planimetriya, fazo uchun emas.
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