Teng yonli uchburchakning ikki tomoni va ga teng. Uning uchinchi tomonini to­ping. A b c 11 d 2

7-sinf geometriya
1. Teng yonli uchburchakning ikki tomoni 8 va 3 ga teng. Uning uchinchi tomonini to­ping.
A) 5 B) 3 C) 11 D) 9
2. Teng yonli uchburchakning bir tomoni ikkinchisidan 3 cm qisqa va perimetri 30cm bo‘lsa, uning yon tomonini toping. A) 9,9,12 B) 12,12,15 C) 14,11,11, D) 18 15,15
3. Teng yonli uchburchakning perimetri 40, yon tomoni 15 ga teng. Uning asosini toping.
A) 10 B) 12 C) 16 D) 14
4. Teng yonli uchburchakning perimetri 48 ga teng. Uning to­monlaridan biri 12 ga teng bo‘lsa, qolgan tomonlarini toping. A) 12; 12 B) 16; 16 C) 18; 24 D) 18; 18
5. Teng yonli uchburchakning perimetri 36 ga, tomonlaridan biri esa 16 ga teng. Uchburchakning qolgan ikki tomonining uzunliklarini toping.
A) 16 va 4 B) 10 va 10 C) 10 va 10 yoki 16 va 4 D) Bunday uchburchak mavjud emas.
6 . AC kesmaning uzunligini toping A) 6 B) 8 C) 12 D) 10,5
7. Uchburchakning …….. medianasi bor? A) bitta B) ikkita C) uchta D) oltita
8 . Uchburchak burchagini teng ikkiga bo’ladi? A) bisektrisa B) nur C) to‘g‘ri chiziq D) nuqta
9. Uchburchakning qaysi elementi uning tashqi sohasida yo­tishi mumkin?
A) medianasi B) balandligi C) bissektrisasi D) diagonali
10. “Agar uchburchakning ikki burchagi teng bo‘lsa, bu uchbur­chak ……. uchburchak bo‘ladi”
A) teng tomonli B) teng yonli C) to’g’ri burchakli D) o’tkir burchakli
1 1. 5-rasmdagi ABC va FED uchburchaklar tengmi? A) ha B) yo‘q
1 2. 6-rasmdagi qaysi uchburchaklar o‘zaro teng?
A) ΔKLM = ΔLMH B) ΔKLH = ΔMLH
C) ΔKLM = ΔKLH D) Hech qaysi
1 3. 7-rasmdagi ABD va CDB uchburchaklar qaysi alomatga asosan teng bo‘ladi?
A) Uchburchaklar tengligining TBT alomatiga ko‘ra
B) Uchburchaklar tengligining BTB alomatiga ko‘ra
C) Uchburchaklar tengligining TTT alomatiga ko‘ra
14. 8-rasmga qarab uchburchak turini aniqlang.
A) teng tomonli B) teng yonli C) O‘tmas burchakli
15. 9-rasmdagi ma’lumotlarga ko‘ra, quyidagi tengliklardan noto‘g‘risini toping.
A) ∠GEF = ∠HFE B) ∠EGF = ∠FHE
C) ∠EHF = ∠FEG D) ∠EFH = ∠GEF
16. Perimetri 12 cm bo‘lgan uchburchakning balandligi uni perimetrlari 7 cm va 9 cm bo‘lgan uchburchaklarga ajratadi. Balandlik uzunligini toping. A) 2 cm B) 3 cm C) 1 cm D) 4 cm.
17.