Matematika 106/4


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Bog'liq
2004 variant

uchburchakning tomonlari, -uchburchakning yuzi) formula bilan hisoblanadi;
2) radiusi ga, markaziy burchagi ga teng doiraviy sektorning yuzi formula bilan hisoblanadi;
3) tomoni ga, burchaklaridan biri ga teng rombning 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) 1;4;5 B)1;2;4 C) 1;2;5 D) 2;4;5 E) 2;3;4

  • Tekistlikka tushirilgan og’maning uzunligi 25 ga, uning tekistlikdagi proyeksiyasi esa 24 ga teng. Og’ma va tekistlik orasidagi burchakni toping.
    A) B) C)
    D) E)

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

  • Piramidaning asosi tomonlari 6 va 8 ga teng bo’lgan to’g’ri to’rburchakdan iborat. Piramidaning har bir yon qirrasi ga teng bo’lsa, uning balandligini toping.
    A) 100 B) 20 C) 5 D) 25 E) 10

  • 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 aosining yuzi bilan balandligi ko’paymaytsining uchdan biriga teng;
    4) sharning hajmi
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