tolong jawab terimakasih

6x + 2x = 180°
8x = 180°
x = 180 ÷ 8
x = 22,5

• sudut ABD = 6x = 6 × 22,5 = 135°
• sudut CBD = 2x = 2×22,5 = 45°

a) 45°+123°=168°
2X=360°-168°
2X=192°
X=[tex] \frac{192}{2} [/tex]
=96°
jadi x adalah 96°

b)6x+2x=8x
8x=360°
x=[tex] \frac{360}{8} [/tex]
=45°

maaf kalo salah