Qo'shni burchaklar yi'g'indisi necha gradus, 90, 180, 360, 100, Uchburchakning ichki burchaklari yi'g'indisi, 180, 90, 120, 80, Aylananing radiusi 5 cm aylana uzunligini toping, 5pi, 10pi, 2,5pi, 20pi, Aylana diametri 20cm uning radusini toping, 10m, 10cm, 20cm, 5m, To'g'ri burchakning o'tkir burchaklari yig'indisi, 180, 90, 360, 250.

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