6- sinflar uchun matematika fanidan 1-bosqich bilimlar bellasuvi uchun test i-variant

8- sinflar uchun matematika fanidan 1-bosqich bilimlar bellasuvi uchun test
III-variant

1. Aylananing markazidan uzunligi radusiga teng bo’lgan vatargacha bo’lgan masofa 3 sm ga teng bo’lsa, shu aylananing eng katta vatari necha sm bo’ladi?
a) 2 b) 6 c) 4 d) 3
2. tenglikni qanoatlantiruvchi x va y larning barcha qiymatlari yig’indisini toping.
a) 7 b)14 c) 0 d)-7
3.To’g’ri burchakli uchburchakka ichki chizilgan aylana gipotenuzasiga urinish nuqtasidan gipotenuzani 4 sm va 21 sm li bo’laklarga ajratadi. Aylanani radusini toping.
a) 2 sm b) 3 sm c) 8 sm d) 6 sm
4. Hisoblang
a) b) c) d)
5. Muntazam 18 burchakning bir uchidan chiqgan eng kichik diognallari orasidagi burchak necha gradus?
a) 120 b) 160 c) 20 d) 140
6. x -6 +8=0 tenglamaning ildizlari ko’paytmasini toping.
a) 64 b) -8 c) 8 d) -16
7. ABCD to’g’ri burchakli trapetsiya A va D to’g’ri burchak. AB=12 sm , AD=4 sm va BC=4 sm ga teng. BCD burchakning qiymati necha gradus?
a) 135 b) 90 c) 45 d) 120
8. Balandligi 6 sm va yuzi 39 sm ga teng bo’lgan trapetsiyaning asoslarining ayirmasi 5 sm ga teng . trapetsiyaning kichik asosining uzunligi necha sm?
a) 4 b) 7 c) 9 d) 13
9. x va x x -7x+12=0 tenglamaning ildizlari bo’lsa , ildizlari va bo’lgan tenglama tuzung.
a) x b) c) d)
10. Soatning minut mili 600 ga aylanganda, uning soat mili necha gradusga buriladi?
a) 30 b) 40 c) 45 d) 50
11. Sinfdagi o’quvchilarning 54% i rus tilini, 48% i ingliz tilini biladi. 16% i esa ikkala tilni ham bilmaydi. Guruhdagi o’quvchilarning necha foizi faqatgina ingliz tilini biladi?
a) 18 b) 30 c) 36 d) 84
12. Tenglamaning ildizlari yig’indisini toping.

a) 3 b) 5 c) 4 d) 8
13. ABCD kvadratning DC tamonidan E nuiqta olindi. DE=2 sm va BE=10 sm bo’lsa, ABED to’rtburchakning yuzi necha sm ga teng?
a) 40 b) 64 c) 36 d)48
14. tengsizlikni qanoatlantiruvchi butun sonlar yig'indisini toping.
a) 54 b) 57 c) 63 d) 60
15. Bir to’g’ri chiziq o’zora perpendikulyar bo’lgan ikki to’g’ri chiziqning birini 36 da kesib o’tsa, ikkinchisi bilan hosil qilgan o’tmas burchakni toping.
a) 114 b) 66 c) 156 d) 126
16. 8x -9x+2=0 tenglama ildizlarining o’rta arifmetigining o’rta geometrigiga nisbatini toping.
a) b) c) d)
17. ni hisoblang.
a) 6,88 b) 5,68 c) 6,84 d) 5,28
18. Rombning yuzi 120 sm ga, diognallaridan biri 24 sm ga teng. uning tamonini toping.
a) 13 sm b) 10 sm c) 14 sm d) 8 sm
19. va bo’lsa ,quydagilardan qaysi biri to’g’ri bo’lishi mumkin?
a) a b) c) b d)
20. Agar to’g’ri to’rtburchakning bo’yi enidan 49 m uzun bo’lsa, va diognali 61m bo’lsa, uning yuzi necha m bo’ladi?
a) 1200 b) 600 c) 660 d) 1320
21. ifodani soddalashtiring:
22. Doiraga tashqi chizilgan teng yonli trapetsiyaning asoslari 8 sm va 32 sm ga teng shu doirani yuzini hisoblang.
23. tengsizlik nechta butun yechinga ega?
24. Muntazam ko’pburchakning bir tashqi burchagi 22.5 ga teng. bu ko’pburchakda eng ko’pi bilan nechta diagonal o’tkazish mumkin.?
25. bo’lsa, b=?