Matematika 106/4


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C) D) 36 E)

  • Quyidagi tasdiqlarning qaysilari to’g’ri?
    1) tomonlari va bo’lgan uchburchakka ichki chizilgan aylananing radiusi formula bilan hisoblanadi;
    2) radiusi ga, markaziy burchagi ga teng doiraviy sektorning yuzi formula bilan hisoblanadi;
    3) tomonlari va ga, ular orasidagi burchaklaridan biri ga teng bo’lgan paralellogrammning yuzi formula bilan hisoblanadi;
    4) diagonallari 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’lchovlarining nisbatiga teng;
    A) 1;3;4 B) 2;3;4 C) 1;2;4 D) 1;2;5 E) 2;4;5

  • Tekistlikka tushirilgan og’maning uzunligi 30 ga, uning tekistlikdagi proyeksiyasi esa 24 ga teng. Og’ma va tekistlik orasidagi burchakni toping.
    A) B) C)
    D) E)

  • Uchlari va nuqtalarda bo’lgan kesma o’rtasining kordinatalarini toping.
    A) (2;-3;3) B) (3;-3;4) C) (2;-4;3)
    D) (2;-3;4) E) (3;-3;3

  • To’rtburchakli muntazam piramida asosining tomoni 3 marta kattalashtirildi. Hosil bo’lagan piramida hajmining dastlabki piramida hajmiga nisbatini toping.
    A) 9:1 B) 1:1 C) 3:1 D) 1:9 E) 1:3

  • Quyidagi tasdiqlarning qaysilari to’g’ri?
    1) piramidaning hajmi asosining yuzi bilan balandligi ko’paytmasining uchdan biriga teng;
    2) ikkita o’xshash jism hajmlarining nisbati ularning mos chiziqli o’lchovlari kvadratlarining nisbatiga teng;
    3) silindrning hajmi asosining yuzi bilan balandligi ko’paymaytsining uchdan biriga teng;
    4) sharning hajmi ga teng;
    5) shar sektorining hajmi
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