Geometriya .VIII-sinf.II-chorak test. C-variant
1. B(5;-3), B
1
-oy o’qiga nisbatan B nuqtaga simmetrik nuqta,B
2
esa ox o’qiga nisbatan B
1
nuqtaga simmetrik nuqta.B
2
nuqtaning koordinatalarini toping.
#1 (5;3) #2 (-5;-3) #3 (-5;3) #4 (5;-3) #5 (2;8)
2. Kvadrat bo’lmagan rombning nechta simmaetriya o’qi bor?
#1 0 #2 1 #3 2 #4 cheksiz ko’p #5 mavjud emas
3. Teng yonli uchburchakning uchidan o’tkazilgan balandligi undan perimetri 36 sm ga teng uchburchak kesadi.Agar
berilgan teng yonli uchburchakning perimetri 48 sm ga teng bo’lsa balandligining uzunligini hisoblang.
#1 12 sm #2 6 sm #3 16 sm #4 11 sm #5 21 sm
4. Teng yonli uchburchakning uchidan o’tkazilgan balandligi undan perimetri 36 sm ga teng uchburchak kesadi.Agar
berilgan teng yonli uchburchakning perimetri 30 sm ga teng bo’lsa balandligining uzunligini hisoblang.
#1 12 sm #2 6 sm #3 16 sm #4 11 sm #5 21 sm
5. Teng yonli uchburchak ikki tomonining uzunligi 6 sm va 12 sm bo’lsa , asosi va yon tomonini toping.
#1 12,14 #2 6,6 #3 10,22 #4 6,12 #5 12,25
6. L to’g’ri chiziq ABC uchburchakning simmetriya o’qi .Uchburchakning perimetri 46 sm. AO=6,5 sm bo’lsa, shu
uchburchakning AB tomonini toping.
#1 13 sm #2 16,5 sm #3 17 sm #4 16 sm #5 12 sm
7. (4; 7) nuqtaga koordinatalar boshiga nisbatan simmetrik nuqtaning koordinatalari nimaga teng?
#1 (-4;7) #2 (-4;-7) #3 (0;-7) #4 (7;4) #5 (-7;-4)
8. Biror O markazga nisbatan simmetriyada o’ziga-o’zi akslanadigan shakl … deyiladi.
#1 markaziy simmetrik shakl #2 simmetriya o’qi #3 o’qqa nisbatan simmetrik shakl #4 Hammasi to’g’ri #5 TJY
9. To’g’ri to’rtburchakning simmetriya o’qlari x= 2 va y=3. Uning uchlaridan biri A(7;5), simmetriya markaziga
nisbatan simmetrik uchining koordinatasini toping.
#1 (-3;5) #2 (7;1) #3 (-3;1) #4 (-2;4) #5 (2;2)
10. Simmetriya so’zining o’zbekchasi nima bo’ladi?
#1 o’lchovlilik #2 go’zallik #3 tenglik #4 o’lchovdosh #5 hamma javob to’g’ri
11. Tomoni 15 sm bo’lgan kvadrat yuzini toping
#1 169 sm
2
#2 225 sm
2
#3 900 sm
2
#4 625 sm
2
#5 2 sm
2
12. Tomoni 4 dm bo’lgan kvadratni perimetrini toping.
#1 24 dm #2 12dm #3 16 dm #4 3dm #5 10dm
13. Perimetri 36sm bo’lgan kvadratni yuzni toping.
#1 81 sm
2
#2 36 sm
2
#3 100 sm
2
#4 50 sm
2
#5 60 sm
2
14. Tomonlari mos ravishda 5 sm vs 6sm bo’lgan to’g’ri to’rtburchakning yuzini toping.
#1 30 sm
2
#2 15 sm
2
#3 12 sm
2
#4 22 sm
2
#5 11 sm
2
15. 5m
3
= …dm
3
#1 5 #2 50 #3 500 #4 5000 #5 50000
16. To’g’ri to’rtburchakning bo’yi 24 sm,eni bo’yidan 3 marta qisqa.Shu to’rtburchakning yuzini toping.
#1 24sm
2
#2 32sm
2
#3 192 sm
2
#4 27 sm
2
# 5 146 sm
2
17. Yuzi 144 sm
2
,balandliklari 8 sm va 12 sm bo’lgan parallelogrammning perimetrini toping.
#1 40 sm #2 30 sm #3 80 sm #4 60 sm #5 120 sm
18. Togri burchakli uchburchakning yuzi 36 ga teng .Agar katetlar nisbati1:2 ga teng bo’lsa,katetlarni toping.
#1 12; 6 #2 12;3 #3 8;9 #4 6;6 #5 12;4
19. Uchburchakning balandligi 40 sm, yuzi 400 sm
2
bo’lsa, uning asosini toping.
20.Togri burchakji uchburchakning b kateti 20 sm va c gipotenuzasi 25 sm bolsa,yuzini toping.
21. Tomonlari 5,5,6 bo’lgan uchburchak yon tomoniga tushirilgan balandlikni toping.
22.Tomonlari 10sm, 10sm, 12sm ga teng bolgan uchburchakning kichik tomoniga tushirilgan balandligini toping.
23.ABC uchburchakda AB=5 sm BC=7sm va AC=10 sm bo’lsa AB tomonga tushirilgan balandlikni toping .
24.ABC uchburchak tomonlari AB=10 sm BC=4 sm va AC=8 sm bo’lsa, AC tomonga tushirilgan balandlikni toping.
25.Katetlaridan biri 8 ga teng bo'lgan to'g'ri burchakli uchburchak gipotenuzasining ikkinchi katetga nisbati 5:3 ga
teng. Uchburchakning yuzini toping.
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