70 gradusli burchak bissektrissasi nechiga teng?, Uchburchakning ichki burchaklari yig'indisi nechiga teng?, Qarama-qarshi burchaklar yig'indisi nechiga teng?, Chizg'ich nima uchun kerak?, To'g'ri burchakli uchburchakka tarif bering, Viyet teoremasini ayting, Uchburchakning burchak bo'yicha turini ayting, Teng yonli uchburchak xossasini ayting, Uchburchak tengsizligini ayting, Parallel togri chiziq nima?, Ichki bir tomonlama burchaklar yigindisi nechaga teng, Uchburchakning tashqi burchagi deb nimaga aytiladi?, Qaysi hollarda katet gipotenuzaning yarmiga teng?, Kb alomatini ayting, KK alomatini ayting.

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