Join the IDNLearn.com community and start getting the answers you need today. Whether it's a simple query or a complex problem, our community has the answers you need.
Answer:
4x = 180
Step-by-step explanation:
angle x = angle y so we can say both angles are 'x + x' or '2x'
angle z = twice angle y (or twice angle x because they're equal) so we can say angle z = 2x
2x + 2x = 180