Odpowiedź:
180 :2 = 90 90- 20 =70 70 + 90 =160 180 -160 = 20
odp 3 kat ma 20°
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Odpowiedź:
180 :2 = 90 90- 20 =70 70 + 90 =160 180 -160 = 20
odp 3 kat ma 20°