Matematika 106/4


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Bog'liq
2004 variant

ga, markaziy burchagi ga teng doiraviy sektorning yuzi formula bilan hisoblanadi;
3) tomonlari va ga, ular orasidagi burchagi ga teng bo’lgan uchburchakning yuzi formula bilan hisoblanadi;
4) dioganallari va ga, ular orasidagi burchagi ga teng ixtiyoriy qavariq to’rtburchakning yuzi formula bilan hisoblanadi;
5) o’xshash figuralar yuzlarining nisbati ularning mos chiziqli o’lchovlari kvadratlarining nisbatiga teng.
A) 3;4;5 B) 2;4;5 C) 1;4;5 D) 1;3;5 E) 1;2;4

  • Tekistlikka tushirilgan og’maning uzunligi 50 ga, uning tekistlikdagi proyeksiyasi esa 14 ga teng. Og’ma va tekistlik orasidagi burchakni toping.
    A) B) C)
    D) E)

  • Quyidagilardan qaysi biri tekistlikka nisbatan nuqataga simmetrik bo’lgan nuqta?
    A) B) C)
    D) E)

  • To’rtburchakli muntazam piramida asosining tomoni 2 marta kattalashtirildi, balandligi esa 2 marta kichiklashtirildi. Hosil bo’lgan piramida hajmining dastlabki piramida hajmiga nisbatini toping.
    A) 4:1 B) 1:2 C) 1:1 D) 1:4 E) 2:1

  • Quyidagi tasdiqlarning qaysilari to’g’ri?
    1) konusning hajmi asosining yuzi bilan balandligi ko’paytmasining uch baravariga teng;
    2) ikkita o’xshash jism hajmlarining nisbati ularning mos chiziqli o’lchovlari kublarining nisbatiga teng;
    3) silndrning hajmi asosining yuzi bilan balandligining ko’paytmasiga teng;
    4) sharning hajmi ga teng;
    5) shar sektorining hajmi
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