Răspuns:
2). A, C - A+C=180°
B, E - B+E=180°
D, F - D+F=180°
3). P=90°-60°=30°
Q=90°-42°=48°
R=90°-37°43'=52°17'
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Răspuns:
2). A, C - A+C=180°
B, E - B+E=180°
D, F - D+F=180°
3). P=90°-60°=30°
Q=90°-42°=48°
R=90°-37°43'=52°17'