ГДЗ по геометрии 11 класс. Атанасян ФГОС 1

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\[\textbf{а)}\ PE \subset ABD\]

\[MK \subset BCD\]

\[DB \subset ABD;DB \subset BCD\]

\[AB \subset ABD;AB \subset ABC\]

\[EC \subset ABC\]

\[\textbf{б)}\ C = DK \cap ABC;\]

\[E = CE \cap ABD.\]

\[\textbf{в)}\ A;B;D;E;M;P \in ABD\]

\[B;C;D;M;K \in BCD\]

\[B;D;M \in BD = ABD \cap BCD\]

\[\textbf{г)}\ BC = ABC \cap DCB\]

\[AD = ABD \cap CDA\]

\[CE = PDC \cap ABC\]