Matematika 106/4

4)
5)
A) 3;4;5 B) 2;3;4 C) 1;2;4 D) 1;2;5 E) 2;4;5

To’g’ri burchakli uchburchakning balandligi gipotenuzani 5 va 20 ga teng kesmalarga ajratadi. Shu balandlikni toping.
A) 10 B) 20 C) D) E)

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 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