7- sinf matematika test

9. Bir sonning 25 % I 450 ga teng shu sonning 87 % ni toping.

A) 1566 B) 1655 C) 1687 D) 1512

10.(-8)² ▪ 2⁴ ni asosi 2 bo`lgan darsja ko`rinishda ifodalang.

A) 2⁶ B) 2¹⁰ C) 2¹² D) 2⁴

11. a = 3⁴ b = 4³ c= (-2)⁸ sonlarni o`sib boorish tartibida joylashtiring.

A) a < b < c B) c < b < a C) b < a

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12. ( -12, (3)) ab2c ▪ (- —) acb birhadlarni ko`paytiring

37

A) 3a²b²c² B) -3a²b³c² C) 3a²b³c² D) 9a²b³c²

13. AB kesmada D nuqta olingan . Agar AD = 18 dm AB = 31 dm bo`lsa BD - ?

A) 13 dm B) 20 dm C) 49 dm D) 16 dm

14. Quyidagi tasdiqlardan qaysi biri noto`g`ri?

A) Agar uchburchakning bitta burchagi o`tkir burchak bo`lsa, shu uchburchak o`tkir burchakli.

B) Agar uchburchakning bitta burchagi to`g`ri burchakli bo`lsa, u holda bu uchburchak to`g`ri burchakli.

C) Agar bir uchburchakning bitta burchakgi o`tmas burchak bo`lsa, bunday uchburchak o`tmas burchakli uchburchak.

D) To`g`ri burchakli uchburchakning qolgan 2 ta burchagi o`tkir burchak.

2

15. Qo`shni burchaklardan biri ikkinchisining — qismini tashkil etadi shu burchaklarning kichigini toping. 3

A) 108⁰ B) 90⁰ C) 72⁰ D) 42⁰
16. Uchburchakning bir burchagi ikkinchi burchagidan 2 marta katta , uchinchi burchagidan esa 10⁰ ortiq uning burchaklarini toping?

A) 38⁰ , 76⁰ , 66⁰, B) 45,55⁰,80 C) 42,58⁰,80⁰ D) 40⁰,50⁰,90⁰