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3x-2x = 12 + 48
x= 60 (sudut ABC dan DBE)
<ABD = <CBD
<CBD = 180 - <ABC
= 180 - 60
= 120
3x -2x = 12 + 48
x = 60
2x + 12 + sudut ABE = 180 (berpelurus)
2(60) + 12 + sudut ABE = 180
120 + 12 + sudut ABE = 180
132 + sudut ABE = 180
sudut ABE = 180 - 132
sudut ABE = 48