Penjelasan dengan langkah-langkah:
2c + 5c + 2c = 90°
9c = 90°
c = 90/9
c = 10°
2c = 2.10 = 20°
5c = 5.10 = 50°
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Penjelasan dengan langkah-langkah:
2c + 5c + 2c = 90°
9c = 90°
c = 90/9
c = 10°
2c = 2.10 = 20°
2c = 2.10 = 20°
5c = 5.10 = 50°