Odpowiedź:
3 x + 5 x + x + 90° = 180°
9 x = 90° / : 9
x = 10°
3*10° = 30°
10° + 90° = 100°
Odp. 100° + 10° = 110°
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Odpowiedź:
3 x + 5 x + x + 90° = 180°
9 x = 90° / : 9
x = 10°
3*10° = 30°
10° + 90° = 100°
Odp. 100° + 10° = 110°
======================
Szczegółowe wyjaśnienie: