tolong di bantu ya kk
Matematika
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Pertanyaan
tolong di bantu ya kk
1 Jawaban
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1. Jawaban MuklasID
a.)3x+5x+20=180
8x+20=180
8x=160
x=20
b.)ABD = 3x = 3.20 = 60°
c.)CBD = 5x+20 = 5.20+20 = 120°