Uchburchakning ichki burchaklaridan ikkitasi $70^\circ$ va $80^\circ$ ga teng bo'lsa, uning 3-ichki burchagini toping.
- A. $30^\circ$
- B. $40^\circ$
- C. $35^\circ$
- D. $20^\circ$
Uchburchakda burchaklar bo‘yicha savol
Javob va yechimni ko‘rish
Javob: $30^\circ$
Mavzuni mustahkamlang
Bu savol Uchburchakda burchaklar mavzusiga tegishli. Ta’riflar, formulalar va misollarni mavzu sahifasida ko‘ring.
Mavzuni o‘rganishShu mavzudagi boshqa savollar
△ABC da $\angle BAC = 40^{\circ}$ berilgan. $AB$ uzaytmasi $BD$ bo‘lib, $\angle ABD = 120^{\circ}$ (tashqi burchak). $\angle ABC$ va $\angle ACB$ ichki burchaklar bo‘lsin. $\angle ACB$ ning o‘lchamini toping.Uchburchakning ichki burchaklaridan ikkitasi $80^\circ$ va $50^\circ$ ga teng bo'lsa, uning 3-ichki burchagini toping.Uchburchakning ichki ikkita burchagi $70^\circ$ va $60^\circ$ ga teng bo'lsa, uchburchakning bu burchaklarga qo'shni bo'lmagan tashqi burchagini toping.Uchburchakning ichki burchaklari $3:2:1$ nisbatda bo'lsa, uning eng katta tashqi burchagini toping.Uchburchakning ichki burchaklari arifmetik progressiyani tashkil qilsa, uning kattaligi bo'yicha o'rtacha burchagini toping.