Jika AB//DC,maka sudut KLM=…a.70°b.40°c.30°d.10°

KLM = 360 – 150 + 140
KLM = 360 – 290
KLM = 70(A)

semoga membantu

<KLM = 360 – (140° + 150°)
= 360° – 290°
= 70°