bantuin........... y kak 6&7
Matematika
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Pertanyaan
bantuin........... y kak 6&7
1 Jawaban
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1. Jawaban khominghoo
6. x+2x = 180-90
3x = 90
x = 90/3 = 30°
2x = 60°
XZA = 180-60 = 120°