Ga katta. Uchburchakning katta burchagini toping. A 102 b 93 c 75 d 70

1. Agar uchburchakningA, B va C burchaklari 1:2 va 3 sonlariga proporsional bo’lsa, B burchakni toping. A) 30 B) 60 C) 90 D) 45

2. Uchburchakning ikkita burchagining qiymatining nisbati 1:2 kabi. Uchinchi burchagi shu burchaklarning kichigidan 40⁰ ga katta. Uchburchakning katta burchagini toping. A) 102 B) 93 C) 75 D) 70

3. ABC uchburchakda A uchidagi tashqi burchagi 120⁰ ga, C uchidagi ichki burchagi 80⁰ ga teng. B uchidagi tashqi burchagini toping. A) 140 B) 120 C) 130 D) 150

4. Teng tomonli uchburchakning asosi 74.7 sm gat eng. Yon tomoni asosidan marta kichik. Shu uchburchakning permetrini toping. A) 190 B) 190.9 C) 191 D) 181.9

5. Uchburchakning bir burchagi ikkinchisidan 10⁰ ga kam, ikkinchi burchagi esa uchinchisidan 10⁰ ortiq. Shu uchburchakning burchaklarini toping. A) 60 B) 120 C) 30 D) 45

6. Teng tomonli uchburchakning permetri 75.9 sm gat eng. Uning tomonini uzunligini toping. A) 23.5 B) 22.5 C) 25.3 D) 35.3

7. Teng tomonli uchburchakning tomoni uzunligi 23.8 sm gat eng. Uning permetrini toping. A) 71.4 B) 14.7 C) 46.7 D) 74.1

8. Teng yonli uchburchakning uchidagi burchagi 52⁰ ga teng. Asosidagi burchagini toping. A) 60 B) 62 C) 63 D) 64

9. Uchburchakning bir burchagi 72⁰ ga teng. Ikkinchi burchagi esa undan 2 marta kichik. Shu uchburchakning burchaklarini toping. A) 73 B) 72 C) 70 D) 36

10. Anvar uzunliklari 3.4 sm, 0.9 sm va 4.5 sm bo’lgan kesmalardan uchburchak yasamoqchi. U uchburchak yasay oladimi? A) ha B) yo’q C) urinib ko’radi D) A va B javoblar to’g’ri

11. Uchburchakning bir tomoni 8.9 sm ga teng. Undan ikkinchi tomni 1.8 sm qisqa. Uchinchi tomoni esa 3.6 sm uzun. Shu uchburchakning permetrini toping. A) 28 B) 27.5 C) 16 D) 28.5

12. Uchburchakning bir burchagi 40⁰ ga teng. Ikkinchi burchagi esa undan 2.5 marta katta. Shu uchburchakning uchinchi burchagini toping. A) 40 B) 30 C) 60 D) 80

13. Teng yonli uchburchakning uchidagi tashqi burchagi 100⁰ ga teng bo’lsa asosidagi burchagini toping. A) 50 B) 60 C) 70 D) 80

14. Hisoblang. A) B) -0.(2) C) D) 9.4

15. Ifodaning son qiymatini toping. A) 152 B) 162 C) 142 D) 128