Geometry
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Teng yonli uchburchakning asosiga tushirigan balandligi va yon tomoni orasidagi burchak 25° bo’lsa asosidagi burchakni toping!
A)45° B)55° C)60° D)65°
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Uchburchak perimetri 25 ga teng. Agar uchburchak asosiga tushurilgan mediana perimetrlari 20 va 10 ga teng bo’lgan ikkita uchbuchakka ajratsa, mediana uzunligini toping.
A)2,5 B)5 C)7,5 D)10
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To’g’ri burchakli uchburchak gipotenuzasi 20ga, bitta kateti esa12ga eng bo’lsa, gipotenuzaga tushirilgan balandlikni toping.
A)6,7 B)9,8 C)10 D)10,5
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Tomoni 2ga teng bo’lgan ikkita kvadrat va tomonlari 4 va 3 ga teng bo’lgan tog’ri to’rtburchak yordamida boshqa bir to’g’ri to’rtburchak hosil qilindi. Yangi to’g’ri to’rtburchakni yuzini toing.
A)18 B)20 C)25 D)50
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ABC uchburchak berilgan. Agar B burchak 60° ga teng, AB tomon 4ga BC tomon 3 ga teng bo’lsa, AC tomonni toping!
A)3 B)3,2 C) D)
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Quyidagi rasmdagi malumotlarga asoslangan holatda α burchakni toping!
A)30° B)45° C)60° D)75°
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Juftliklar to’gri berilgan javobni belgilang.
1)uchburchak
medianasini topish formulasi
2)uchburchak bissektrisasini topish formulasi
3)tog’ri burchakli
uchburchak uchun formula
a)
b)
c)
A)1-b; 2-c; 3-a B)1-c; 2-b; 3-a
C)1-c; 2-a; 3-b C)1-a; 2-c; 3-b
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Tog’ri tortburchak dioganallari 12ga va ularorasidai o’tkir burchak 30° ga teng bo’lsa, uning yuzini aniqlang.
A)24 B)30 C)32 D)36
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Kvadrat tomoni 2ga teng bo’lsa uning dioganali nechaga teng bo’ladi?
A)4 B)2 C)2 D)
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Tomonlari 4 va 6 ga teng bo’lgan to’g’ri to’rtburchakni tomoni 2ga teng bo’lgan nechta kvadratga ajratish mumkin?
A) 4ta B)5ta C)6ta D)8ta
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Ihtiyoriy uchburchak burchaklari 6:8:10:12 nisbatda bo’lsa, eng kichik burchakni toping.
A)24° B)36° C)54° D)60°
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Romb dioganallari orasidagi burchak doim … ga teng.
A)45° B)60° C)90° D)har
doim har xil
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Rombning tomoni 20ga tomonlari nisbati bo’lsa, katta dioganalni toping.
A)10 B) C)10 D)5
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Dioganallari 10 va 12 ga teng bo’lgan rombning yuzini toping!
A)120 B)60 C)50 D)30
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Rombning tomoni 5ga bitta o’tkir burchagi 30°ga teng bo’lsa uni yuzini toping.
A)10 B)10,5 C)12 D)12,5
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Parallelogramning katta burchagi 105° ga teng bo’lsa kichik burchagini toping.
A)50° B)75° C)100° D)125°
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Dioganallari 12 va 16, ular orasidagi burchagi esa 60° ga teng bo’lgan parallelogramning yuzini toping.
A)48 B)96 C)126 D)218
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Qaysi geometric shaklda barcha tomonlari o’zaro teng bo’ladi.
1) kvadrat 2) to’g’ri to’rtburchak 3) romb 4) parallelogram 5)
ihtiyoriy uchburchak
A)1; 2; 3; 4 B)2; 3; 4 C)1; 3 D)1; 3; 5
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Qaysi geometric shaklda qarama qarshi tomonlari o’zaro teng va parallel bo’ladi?
1) kvadrat 2) to’g’ri to’rtburchak 3) romb 4) parallelogram 5) ihtiyoriy uchburchak
A)1; 2; 3; 4 B)1; 2; 4 C)1; 3 D)1; 3; 5
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To’rtburchaklarda pifagor teoremasini qanday qo’llash mumkin?
A)bitta dioganal o’tkizib
uchburchakni ajratib olib
B)tomonga balandlik tushirib uchburchakni ajratib olib
C)ikkita dioganal o’tkizib
uchburchaklardan birini olib
D)teoremani qo’llab bo’lmaydi
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