Tolong dijawab yang benar okkk

Garis dan Sudut

<ABD + <CBD = 180°
7X + 5X = 180
12X = 180
X = 180/12
X = 15

<ABD = 7X°
<ABD = (7 x 15)°
<ABD = 105° (B).

*semoga membantu. sukses selalu ^_^