Matematika sinf. Test savollari. Iii-chorak II- variant. Tog`ri to`rtburchakning eni sm ga teng, bo`yi undan sm ga ortiq bo`lsa, uning perimetrini toping

Matematika. 7 sinf. Test savollari. III-chorak II- variant.
1. Tog`ri to`rtburchakning eni 8 sm ga teng, bo`yi undan 2 sm ga ortiq bo`lsa, uning perimetrini toping.
A) 24 sm B) 28 sm C) 36 sm D) 20 sm
2. Uchburchakning tomonlari 7 sm, 11 sm, 8 sm ga teng. Uchlari shu uchburchak tomonlarining o`rtalarida yotgan uchburchak perimetrini toping. A) 13 sm B) 16 sm C) 22 sm D) 26 sm
3. To`rtburchak 3 ta burchagi yig`indisi 280⁰. To`rtinchi burchagiga qo`shni bo`lgan burchakning qiymatini toping. A) 80⁰ B) 70⁰ C) 100⁰ D) 110⁰
4. Uchburchakning ikkita burchaklari 20⁰ va 60⁰ ga teng bo`lsa, uning noma’lum burchagini toping.
A) 100⁰ B) 20⁰ C) 80⁰ D) 120⁰
5. Agar uchburchakning A, B va C burchaklari 4; 5 va 6 sonlariga proporsional bo`lsa, A burchakni toping.
A) 60<sup>0</sup> B) 30<sup>0</sup> C) 48<sup>0</sup> D) 72<sup>0</sup>
6.Teng yonli uchburchakning asosi yon tomonidan 2 sm ga qisqa. Agar uchburchakning perimetri 19 sm bo`lsa, asosining uzunligi necha santimetrga teng ? A) 4 B) 5 C ) 6 D) 7
7. Kasrlarning yig`indisini toping: . A) B) C) D)
8. Kasrlarni ayiring: A) B) C) D)


9. Kasrni qisqartiring: . A) B) C) D)
10. Algebraik kasrning son qiymatini toping: , bunda a= 4, b= -5. A) -3,75 B) C) 3,75 D)
11. Surati p va q sonlarining kvadratlarining yig`indisiga, maxraji esa ularning ko`paytmasiga teng bo`lgan algebraik kasrni yozing. A) B) C) D)