8-sinf Kvadrat yuzini formulasini toping a S=a2 b S= a∙b c s=H∙a d S= a 2

8-sinf
1. Kvadrat yuzini formulasini toping.
a) S=a^{2 b)} S= a∙b C) S=H∙a d) S= a
2.. Uchburchakning tomonlari 8 va 6 bo’lsa balandligi 4 sm bo’lsa uning yuzini toping.
a)16 sm² b) 8 sm² C) 32 sm² D) 4 sm²
3. Uchburchakning yuzini formulasi toping.
A)S= (a+b) B)S= ah C) S=ab D) S= a+b
4. Parallelogramm burchaklaridan biri ikkinchisidan 50⁰ katta, uning burchaklaridan kichigini toping. A) 45⁰ B) 30⁰ C) 65⁰ D) 75⁰
5. Trapetsiyaning asosining nisbati 2:3 ga teng o’rta chizig’I esa 5 sm ga teng . Trapetsiyaning katta asosini toping. A) 4 B) 6 C) 5 D) 7
6.Uchburchakning yon tomonlari 30 sm va 25 sm, asosiga tushirilga balandligi 24 sm bo’lsa, uchburchakning asosini toping
7. To’g’ri to’rtburchakning eni 5 ga teng, bo’yi undan 7 ga ortiq shu . To’g’ri to’rtburchakning perimetrini toping. A) 34 B) 32 C) 24 D) 30
8. Kvadrat yuzi 64dm² , Kvadratning perimetrini toping.
A) 48 B) 36 C) 42 D) 32
9. Geometriya so’zining ma’nosi A) yer o’lchayman B) yuza C) tomon D) fanlarni o’rganaman .
10. Agar to’g’ri to’rtburchakning yuzi 400ga tomonlariningg nisbati 4:1 ga teng. Shu to’g’ri to’rtburchakning perimetrini toping.
A) 100 B) 200 C) 120 D) 80
11. Tomonlari 13, 14 va 15 sm bo’lgan uchburchakning eng kichik balandligi necha sm?
A) 11,5 B) 11,1 C) 11 D) 11,2
12. Uchburchakning asosi 15,6 sm gat eng. Uchburchakning o’rta chizig’ini toping.
A) 7,8 B) 8,7 C) 16,8 D) 2,8
13. Rombning bir burchagi ikkinchisidan 14⁰ kam bo’lsa shu rombning burchaklarini toping.
A) 166⁰ va 194 ⁰ B) 95⁰ va 85 ⁰ C)83⁰ va 97 ⁰ D) 100⁰ va 87 ⁰
14.Parallelogramm burchaklaridan biri 100⁰ bo’lsa qolgan burchaklarini toping.
A) 100⁰, 80⁰,100⁰, 80⁰ B) 40⁰,120⁰,60⁰,40⁰ C)70⁰,100⁰,70⁰,120⁰ D)60⁰,50⁰,100⁰,150⁰
15. Parallelogramm burchaklaridan biri , ikkinchisidan 50⁰ katta , uni burchaklaridan kichigini toping. A) 45⁰ B) 30⁰ C) 65⁰ D) 75⁰
16. Uchburchakda a=2, b=1 va С=60⁰ bo’lsa c tomonini toping.
A) sin =1+cos tg = B) sin -cos =1 tg =
C) ctg = D) tg = ctg =
17.To’g’ri burchakli uchburchakning katetlari berilgan, gipotenuzani toping a=5, b=8.
A) B) C) D) .
18.a=7 sm, c=10 sm bo’lsa, shu uchburchakning o’tkir burchagi A) cos B=7 B) cos B=0,7 C) cos B=10 D) 1.
19. Kosinus atamasi nimani bildiradi.
.20To’g’ri burchakli uchburchakda kateti a=6 sm va gipotenuza c=13 sm, o’tkir burchagi sinusini toping.