Muntazam uchburchak nima?, , trapetsiya yuzini toping?,  parallelogram yuzini toping?, x burchakni toping?, medianalar kesish nuqtasida uchburchak uchidan boshlab hisoblaganda qanday nisbatdagi kesmalarga ajraladi?, Uchburchakning medianalar kesishish nuqtasining nomi nima?, uchburchakka ichki chizilgan aylananing markazini 2-nomini ayting?.

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