Теорема синусов
AM/sin(AKM) = AK/sin(AMK)
MC/sin(MBC) = BC/sin(BMC)
AM=MC, AKM=MBC => AK/sin(AMK) = BC/sin(BMC)
sin(AMK) =sin(180-BMC) =sin(BMC) => AK=BC
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Теорема синусов
AM/sin(AKM) = AK/sin(AMK)
MC/sin(MBC) = BC/sin(BMC)
AM=MC, AKM=MBC => AK/sin(AMK) = BC/sin(BMC)
sin(AMK) =sin(180-BMC) =sin(BMC) => AK=BC