9-sonli umumiy o’rta maktabi sinf o’quvchisi

Tekshirdi D. Qaxxorov


3-nazorat ishi


Sana ­­­­­­­­­­­­­­­­­­­­­­­­_{–––––––––––––––––––––––––––––––––––}

1. 
   O (2; 4) nuqtaga nisbatan simmetriyada A (1; 2) nuqta qaysi nuqtaga o’tadi.
   

2. 
   Perimertlari 18 sm va 24 sm bo’lgan ikkita o’xshash ko’pburchak yuzlarining nisbatini toping.
   

3. 
   Uchburchaklarning o’xshashligidan foydalanib, uchburchak o’rta chizig’i uchburchakning bir tomoniga pararell va shu tomonning yarmiga teng ekanligini isbotlang.
   

4. 
   To’g’ri burchakli uchburchakning katetlaridan biri 12 sm, gipotenuzasi esa ikkinchi
   

katetdan 6 sm uzun. Gipotenuzaning uzunligini toping.

5. 
   O’xshash ko’pburchak xossalarini tushuntiring.
   

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Savol №	1	2	3	4	5	Qo’shimcha savol	Jami ball
Ball