Matematika 7-sinf 1-bilet

18-BILET

1. Ifodani soddalashtiring: _{ }

2. Agar _{ } bo`lsa, _{ } shu ifodaning qiymatini toping?

3. Tenglamani yeching: _{ }

4. Ikki to`g`ri chiziqning kesishidan hosil bo`lgan uchta burchakning yig`indisi 256_{ } bo`lsa, burchaklarni toping.

5.Parallelogramning bir burchagining bissektrisasi uning bir tomonini 7 sm va 14 smli kesmalarga ajratadi. Paralelogramning perimetrini toping.

19-BILET 1. Ifodani soddalashtiring:   2. Agar  bo`lsa,   shu ifodaning qiymatini toping? 3. Tenglamani yeching:   4. Rombning bir burchagi 45 . Rombning barcha burchaklarini toping 5. Teng yonli uchburchakning asosidagi burchaklari 40 . Uning uchidagi tashqi burchagini toping?