Matematika 106/4

C) D) E) 8

Quyidagi tasdiqlarning qaysilari to’g’ri.
1) uchburchakka tashqi chizilgan aylananing radiusi (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;3;4 B) 3;4;5 C) 1;3;5 D) 1;2;5 E) 2;3;5

Tekistlikka tushirilgan og’ma va perpendikulyar orasidagi burchak ga teng. Og’maning uzunligi 50 ga teng. Perpendikulyarning uzunligini toping.
A) 21 B) C) 24 D) 48 E) 14

vektorning oxiri nuqta bo’lsa, bu vektorning boshini toping.
A) B) C)
D) E)

Qirrasi 28 ta bo’lgan piramidaning yon yoqlari nechta?
A) 15 B) 16 C) 12 D) 18 E) 14

Quyidagi tasdiqlarning qaysilari to’g’ri?
1) ikkita o’xshash jism hajmlarining nisbati ularning mos chiziqli o’lchovlari kublarining nisbatiga teng;
2) silindrning hajmi asosining yuzi bilan balandligi ko’paytmasiga teng;
3) sharning hajmi ga teng;
4) shar segmentining hajmi ga teng (