uchburchaklar bo’limini takrorlash
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uchburchaklar bo’lim.doc 3-sahifa masalalar yechish. 1. teng yonli uchburchak perimetri 26 sm ga teng. asosiga o'tkazilgan mediana 8 sm ga teng. berilgan uchburchakdan shu mediana ajratgan uchburchak perimetrini toping. 2. teng yonli to'g'ri burchakli uchburchakda to'g'ri burchak bissektrisasi gipotenuzaning yarmiga tengligini isbotlang. isbot: abc ni qaraymiz.bu uchburchakda <c=..., ac=.... cd bissektrisa ab tomonga tushirilgan ham ....., ham ....dir, chunki abc teng yonli, ab- teng yonli uchburchak asosi. ab tomonda ad=.... a b d c adc= bdc, hamda teng yonli uchburchaklar chunki, ............................... demak, cd= 2 1 ab. 3-sahifa masalalar yechish. 1. teng yonli uchburchak perimetri 26 sm ga teng. asosiga o'tkazilgan mediana 8 sm ga teng. berilgan uchburchakdan shu mediana ajrat...
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