Teng yonli uchburchakning ikki tomoni va ga teng. Uning uchinchi tomonini toping?

1. Teng yonli uchburchakning ikki tomoni 8 va 3 ga teng.Uning uchinchi tomonini toping?
A) 3 B) 8 C) 11 D) 9
2.Perimetri 24 bo’lgan uchburchakning balandligi uni perometrlari 14 va 18 bo’lgan ikkita uchburchakka ajratadi. Berilgan Uchburchakning balandligini toping.
A) 10 B) 8 C) 6 D) 4
3.Teng yonli ABC uchburchakda A va C burchaklari teng AB:AC=5:3 va AB-AC=3 ga teng.Uchburchakning perimetrini toping.
A) 19.5 B) 18.5 C) 17.5 D) 16
4.Uchburchak ikkita burchagining kattaliklari nisbati 3:2 ga teng. Uchinchi burchagi shu burchaklarning kattasidan 60 gradusga kichik. Uchburchakning kichik burchagini toping
A) 50 B) 45 C) 40 D) 30
5.AN ABC uchburchakning bissektrisasi. Agar AB=AN va burchak C=30 gradus bo’lsa, B burchak necha gradusga teng?
A) 40 B) 50 C) 60 D) 70
6.To’g’ri burchakli uchburchak katetlaridan biri 12 sm ikkinchisi esa gipotenuzasidan 8 sm qisqa. Shu uchburchakning gipotenuzasini toping.
A) 15 B) 16 C) 13 D) 25
7.To’g’ri burchakli uchburchakning gipotenuzasi 10 ga teng , bir kateti 6 ga teng . Bu katetning gipotenuzadagi proyeksiyasini toping.
A) 4 B) 3.6 C) 4.2 D) 3.4
8. Uchburchak burchaklari qiymatlari 1:2:3 kabi nisbatda katta tomoni ga teng. Uchburchakning perimetrini toping
A) B) C) D)
9.Teng yonli uchburchakning asosi 48 ga unga tushirilgan balandligi 7 ga teng. Uchburchakning yon tomonini toping
A) 25 B) 27 C) 18 D)19
10.Tomonlari 13 , 14 va 15 sm bulgan uchburchakning eng kichik balandligi necha sm ga teng
A) 11.2 B) 11.1 C) 11 D) 11.5
11.Uchburchak tomonlari 11 va 23 ga , uchunchi tomoniga tushirilgan medianasi 10 ga teng . Uchburchakning uchinchi tomonini toping
A) 28 B) 15 C) 25 D) 30
12.ABC uchburchakda AB=AC BM perpendikulyar AC ga BM=9 va MA=12. ABC uchburchak yuzini toping
A) 63.5 B) 64.5 C) 67.5 D) 65.5
13.Uchburchak yuzi 5 ga , ikkita tomoni 3 va 4 ga teng. Berilgan tomonlar orasidagi bissektrisasi ajratgan uchburchaklarning yuzlarini toping
A) ; B) ; C) 2;3 D) ;
14 Sin2010^o ni hisoblang.
A)-0,5; B) C)-2; D)4; E)
16. bo`lsa, ctg=-2 ning qiymatini hisoblang.
A)7/4; B)-7/4; C)1/2; D)4/7; E)-4/7.
16. Agar ifodaning qiymatini toping.
A)3/4; B)1,5; C)1,(3); D)1; E)3/5.
17. ushbu tenglamalar sistemasi nechta yechimga ega.
A)1; B)2; C)4;
D) ; E) to`g`ri javob keltirilmagan
18. Agar bo`lsa, x-y ning qiymatini toping
A)3; B)2; C)1; D)-1; E)-4.
19. Tenglamani yeching 1998x²-2000x+2=0
A) 1; 2/1998; B) -1; 3/1998; C) 1;-2/1998
D) -1;-2/1998; E) 1; -1.
20. 2/x = x+2 ni nechta ildizi bor.
A) 1; B) 2; C) 3; D) ildizi yo`q; E) cheksiz ko`p.