From beginner to expert, IDNLearn.com has answers for everyone. Our platform is designed to provide reliable and thorough answers to all your questions, no matter the topic.
Answer:
y=120
z=20
Step-by-step explanation:
angle below y is 60° because of corresponding angles
y=180-60=120
y+(4z-20)=180(angles in a straight line)
120+4z-20=180
100+4z=180
4z=180-100
4z=80
z=80/4
z=20°