Geometriya .VIII-sinf.III chorak testi. D-variant
1. Parallelogramm yuzi formulasini toping.
#1 S=a.h #2 S=
#3 S=a.b #4
#5 S= a
2
2. Trapetsiyaning asoslari 14 sm va 20 sm.Balandligi 5 sm bo’lsa uning yuzini toping.
#1 55 sm
2
#2 160 sm
2
#3 85 sm
2
#4 210 sm
2
#5 32,5 sm
2
3. Asoslari 8 va 12 ga teng bo’lgan teng yonli trapetsiyaning diagonallari o’zaro perpendikulyar.Trapetsiyaning yuzini toping.
#1 100 #2 64 #3 144 #4 25 #5 49
4. Asoslari 8 va 12 ga teng bo’lgan teng yonli trapetsiyaning diagonallari o’zaro perpendikulyar.Trapetsiyaning yuzini toping.
#1 100 #2 64 #3 144 #4 25 #5 49
5. Trapetsiyaning yuzi 60 ga ,balandligi 4 ga teng bo’lsa, uning o’rta chizig’I qanchaga teng bo’ladi?
#1 15 #2 5 #3 7,5 #4 10 #5 6
6.To’g’ri burchakli uchburchakda a=6 , b= 8 bo’lsa , c ni toping
#1 10 #2 5 #3 15 #4 20 #5 25
7.To’g’ri burchakli uchburchakda a=15 , b= 20 bo’lsa , c ni toping
#1 10 #2 5 #3 15 #4 20 #5 25
8. To’g’ru burchakli uchburchakda a = 10 c=14 bo’lsa , b katetni toping.
#1 0,5 #2 4
#3 2
#4 4
#5
9.Uchta tomoniga ko’ra uchburchak yuzini toping. 17,65,80
#1 288 #2 108 #3 24 #4 60 #5 32
10.Uchta tomoniga ko’ra uchburchak yuzini toping. 12,12,8
#1 288 #2 108 #3 24 #4 60 #5 32
11. Teng tomonli uchburchakning tomoni 6 ga teng, uning yuzini toping.
#1 9
#2 4
#3 25
#4 9
#5 49
12. Teng tomonli uchburchakning tomoni 5 ga teng, uning balandligini toping.
#1 9
#2 8
#3 25
#4 18
#5 49
13.To’g’ri burchakli uchburchakning katetlaridan biri 12 sm,gipotenuzasi esa ikkinchi katetdan 6 sm uzun.Ikkinchi katetning
uzunligini toping.
#1 15 #2 25 #3 26 #4 9 #5 32
14. To’g’ri burchakli uchburchakning katetlaridan biri 12 sm,ikkinchisi esa gipotenuzadan 8 sm qisqa.Shu uchburchakning
gipotenuzasini toping.
#1 15 #2 16 #3 13 #4 55 #5 29
15. Tomonlari 13, 14 va 15 sm bo’lgan uchburchakning eng katta balandligi necha santimetr?
#1 11,5 #2 12,92308 #3 11 #4 11,2 #5 11,6
16. Teng tomonli uchburchakning balandligi 18 sm.Shu uchburchakka ichki chizilgan aylananing radiusini toping.
#1 3 #2 8 #3 6 #4 2,5 #5 5
17. Katetlari 40 va 30 ga teng bo’lgan to’g’ri burchakli uchburchakka ichki chizilgan aylananing radiusini toping.
#1 10 #2 20 #3 30 #4 40 #5 8
18. Radiusi R ga teng bo’lgan aylanadagi nuqtadan uzunliklari R ga teng bo’lgan ikkita vatar o’tkazildi.Vatarlar orasidagi
burchakni toping.
#1 120
0
#2 110
0
#3 135
0
#4 40
0
#5 150
0
19.To'gri burchakli uchburchakning katetlari 4 va 3 ga teng. Katta katetning gipotenuzadagi proeksiyasini toping.
20. Aylana tashqarisidagi nuqtadan aylanaga ikkita urinma o’tkazilgan.Agar urinmalar orasidagi burchak 60
0
bo’lsa,aylananing
urinish nuqtalari orasidagi katta yoyni toping.
21. Aylanani kesuvchi ikki vatari orasidagi burchaklardan biri 80
0
ga teng.Shu burchakka qo’shni bo’lgan burchaklarning
yig’indisini toping.
22. Aylanani kesuvchi ikki vatari orasidagi burchaklardan biri 105
0
ga teng.Shu burchakka qo’shni bo’lgan burchaklarning
yig’indisini toping.
23. Markazi O bo’lgan aylananing AB yoyi 60
0
ga teng. Agar aylananing radiusi 6 sm ga teng bo’lsa, A nuqtadan OB radiusgacha
bo’lgan masofani toping.
24. Markazi O bo’lgan aylananing AB yoyi 60
0
ga teng. Agar aylananing radiusi 10 sm ga teng bo’lsa, A nuqtadan OB
radiusgacha bo’lgan masofani toping.
25. Aylanani 5:7 nisbatda bo’luvchi vatarning biror uchidan o’tkazilgan diametr bilan tashkil etgan burchakni toping.
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