Geometriya .VIII-sinf.IV-chorak test. C-variant
1. Har qanday uchburchakka nechta tashqi aylana chizish mumkin.
#1 2 ta #2 3 ta #3 4 ta #4 Faqat bitta #5 Cheksiz ko’p
2. To’g’ri burchakli ABC (
0
) uchburchakka tashqi aylana chizilgan.Agar AB=6 sm, BC=8 sm bo’lsa, shu aylananing
radiusini toping.
#1 10 #2 2,5 #3 5 #4 20 #5 30
3. To’g’ri burchakli ABC (
0
) uchburchakka tashqi aylana chizilgan.Agar AB=5 sm
0
bo’lsa, shu aylananing
radiusini toping.
#1 10 #2 2,5 #3 5 #4 20 #5 30
4. AB vatar 120
0
li yoyni tortib turadi. Shu vatarning uchlaridan aylanaga o’tkazilgan urinmalarbilan vatardan hosil bo’lgan
burchaklar yig’indisini toping.
#1 60
0
#2 120
0
#3 90
0
#4 80
0
#5 50
0
5. Aylanadan tashqaridagi nuqtadan o’tkazilgan ikki urinmaning urinish nuqtalari aylanani 4:8 nisbatdagi ikkita yoyga ajratadi.
Urinmalar orasidagi burchakni toping.
#1 60
0
#2 150
0
#3 20
0
#4 90
0
#5 180
0
6. Aylanadan tashqaridagi nuqtadan o’tkazilgan ikki urinmaning urinish nuqtalari aylanani 1:2 nisbatdagi ikkita yoyga ajratadi.
Urinmalar orasidagi burchakni toping.
#1 60
0
#2 150
0
#3 20
0
#4 90
0
#5 180
0
7. Berilgan kattalikardan skalyar kattalikni toping:
#1 Kuch #2 Tezlanish #3 Tezlik #4 Vaqt #5 Inersiya kuchi
8. Ikki vektorning yig’indisi nol vektor bo’lsa, ular … vektorlar deyiladi
#1 Birlik vektor #2 Cheksiz vektor #3 Nol vektor #4 Qarama-qarshi #5 Teng
9. ABCD –parallelogramm. O-AC va BD diagonallarning kesishish nuqtasi.
ni toping.
#1
#2
#3
#4
#5
10.
2
;
5
3
;
7
b
va
a
vektorlar berilgan.
b
a
ni hisoblang.
#1 9 #2 5 #3 8 #4 13 #5 12
11.
3
;
2
3
;
2
b
va
a
vektor berilgan.
b
a
m
2
vektorning koordinatalarini toping.
#1
3
;
6
#2
6
;
3
#3
9
;
2
#4
3
;
2
#5
3
;
0
12. ABCD parallelogrammda agar BC tomon AB dan 8 sm kata , perimetri esa 64 sm ga teng bo’lsa,AB tomonni toping.
#1 14 sm #2 20 sm #3 12 sm #4 15 sm #5 25 sm
13. ABCD parallelogrammda agar
0
bo’lsa,
#1 125
0
#2 55
0
#3 65
0
#4 90
0
#5 180
0
14. ABCD parallelogram A burchagining bissektrisasi BC tomonni P nuqtada kesadi va shu bilan birga BP=PC. Agar
parallelogrammning perimetri 48 sm ga teng bo’lsa, uning AB tomonini toping.
#1 8 sm #2 12 sm #3 9 sm #4 22 sm #5 16 sm
15. To’g’ri to’rtburchak diagonallarining kesishuv nuqtasidan uning tomonlariga o’tkazilgan perpendikulyarlar mos ravishda 5 sm
va 7 sm ga teng. Bu to’g’ri to’rtburchakning perimetrini toping.
#1 10 sm #2 14sm #3 140sm #4 48 sm #5 24sm
16. ABCD romb berilgan. AC va BD diagonallar mos ravishda 20 sm va 12 sm ga teng. AO kesmaning uzunligini toping.
#1 10 sm #2 6 sm #3 20 sm #4 12 sm #5 15 sm
17. ABCD parallelogrammda
0
. Parallelogrammning B burchagini toping.
#1 285
0
#2 105
0
#3 65
0
#4 75
0
#5 55
0
18. ABCD parallelogrammda
0
. Parallelogrammning qolgan burchaklari yig’indisini toping.
#1 285
0
#2 105
0
#3 65
0
#4 75
0
#5 55
0
19. Teng yonli trapetsiyaning burchaklaridan biri 125
0
ga teng. Trapetsiyaning qolgan burchaklarini toping.
20. To’g’ri burchakli trapetsiyaning asoslari a va b ga, burchaklaridan biri esa ga teng.a= 7 sm, b = 4 sm, =60
0
bo’lsa, kichik
yon tomonini toping.
21. Teng yonli to’g’ri burchakli uchburchakning gipotenuzasi 20 sm ga teng. Shu uchburchakning katetlarini toping.
22. Teng yonli trapetsiyaning perimetri 32 sm ga teng, kata yon tomoni 5 sm ga, yuzi esa 44 sm
2
ga teng. Trapetsiyaning kichik
asosini toping.
23. Uchburchakning tomonlari 21, 72 va 75 ga teng. Shu uchburchakning yuzini toping.
24.
vektorlar berilgan :
ni hisoblang.
25. A(-1;2), B(-4;-2), C(-1;3), D(-4;-2) bo’lsin. Hisoblang:
Do'stlaringiz bilan baham: |