Jawaban:
a= 30
Penjelasan dengan langkah-langkah:
30+2a= 90
2a= 90-30
2a= 60
a= 60/2
30° = 2a° + 90°
2a° = 90° - 30°
2a° = 60°
a° = 60°/2
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Jawaban:
a= 30
Penjelasan dengan langkah-langkah:
30+2a= 90
2a= 90-30
2a= 60
a= 60/2
a= 30
30° = 2a° + 90°
2a° = 90° - 30°
2a° = 60°
a° = 60°/2
a° = 30°