Geometriya .VIII-sinf.II chorak testi . D-variant
1. Quyidagi mulohazalardan qaysi biri to’g’ri? 1) To’g’ri to’rtburchakning ikkita simmetriya o’qi bor,ular uning
diagonallaridir. 2) To’g’ri to’rtburchakning ikkita simmetriya o’qi bor, bu uning tomonlariga o’tkazilgan o’rta
perpendikulyardir. 3) To’g’ri to’rtburchakning to’rtta simmetriya o’qi bor. 4) 1-,2-, 3-mulohazalar notogri.
#1 1 #2 2 #3 3 #4 4 #5 1,3
2. Kvadratning nechta simmetriya o’qi bor?
#1 1 #2 4 #3 2 #4 3 #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 60 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 uchburchak ikki tomonining uzunligi 7 sm va 14 sm bo’lsa , asosi va yon tomonini toping.
#1 7,14 #2 6,14 #3 7,7 #4 6,12 #5 12,25
5. Teng yonli uchburchak ikki tomonining uzunligi 12 sm va 25 sm bo’lsa , asosi va yon tomonini toping.
#1 25,14 #2 6,12 #3 10,22 #4 6,12 #5 12,25
6. L to’g’ri chiziq ABC uchburchakning simmetriya o’qi .Uchburchakning perimetri 56 sm. AO=8 sm bo’lsa, shu
uchburchakning AC tomonini toping.
#1 13 sm #2 16,5 sm #3 17 sm #4 16 sm #5 12 sm
7. (-3; 5) nuqtaga koordinatalar boshiga nisbatan simmetrik nuqtaning koordinatalari nimaga teng?
#1 (-3;-5) #2 (3;-5) #3 (0;-5) #4 (3;-5) #5 (5;3)
8. Teng tomonli uchburchak nechta simmetriya o’qiga ega?
#1 1 #2 4 #3 2 #4 3 #5 mavjud emas
9. To’g’ri to’rtburchakning simmetriya o’qlari x= 2 va y=3. Uning uchlaridan biri A(2;4), x=2 to’g’ri chiziqqa
nisbatan simmetrik uchining koordinatasini toping.
#1 (-3;5) #2 (7;1) #3 (-3;1) #4 (-2;4) #5 (2;2)
10. Agar geometrik shaklni chekli sondagi yassi uchburchaklarga bo’lish mumkin bo’lsa, bu shakl … deyiladi.
#1 o’lchovdosh #2 sodda shakl #3 murakkab shakl #4 teng shakl #5 TJY
11. Tomoni 30 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. Perimetri 100sm bo’lgan kvadratni yuzni toping.
#1 625sm
2
#2 20 sm
2
#3 100 sm
2
#4 50 sm
2
#5 60 sm
2
13. Perimetri 200 sm bo’lgan kvadratni yuzni toping.
#1 10sm
2
#2 20 sm
2
#3 1000 sm
2
#4 2500 sm
2
#5 600 sm
2
14. Bir tomoni 15 sm,perimetri 46 sm bo’lgan to’g’ri to’rtburchakning ikkinchi tomoni qancha bo’ladi?
#1 15 sm #2 16 sm #3 8 sm #4 10 sm #5 100sm
15. 245 sm
2
=…m
2
#1 0,245 #2 0,0245 #3 0,00245 #4 0,000245 #5 245
16. 19m
2
-10m
2
10dm
2
=
#1 8 m
2
90dm
2
#2 18 m
2
90dm
2
#3 0, 8 m
2
90dm
2
#4 8 m
2
10dm
2
#5 8 m
2
10dm
2
17. ABCD parallelogrammning AC diagonaliga BO perpendikulyar tushirilgan.AO=8,OC=6 va BO=4
bo’lsa,parallelogrammning yuzini toping.
#1 50 #2 28 #3 52 #4 32 #5 56
18. Uchburchakning balandligi 15 sm, yuzi 67,5 sm
2
bo’lsa, uning asosini toping.
#1 10sm#2 8 sm#3 uchburchak mavjud e'mas.#4 12 sm#5 9 sm
19. Uchburchakning balandligi 4 sm, yuzi 136 sm
2
bo’lsa, uning asosini toping.
20.Togri burchakji uchburchakning b kateti 24 sm va c gipotenuzasi 25 sm bolsa,yuzini toping.
21. Tomonlari 5,5,6 bo’lgan uchburchak yuzini toping.
22.Tomonlari 10sm, 10sm, 12sm ga teng bolgan uchburchakning yuzini toping.
23.ABC uchburchakda AB=5 sm BC=7sm va AC=10 sm bo’lsa, uchburchakning yuzini toping .
24.ABC uchburchak tomonlari AB=10 sm BC=4 sm va AC=8 sm bo’lsa, BC tomonga tushirilgan balandlikni toping.
25.To'gri burchakli uchburchakning gipotenuzasi 25 ga, katetlaridan biri 10 ga teng. Ikkinchi katetning gipotenuzadagi
proeksiyasini toping.