Question

А

1
4
2
D
3
In the diagram above, Z1 = 20x+60 and
23 = 30x+20. Find the measure of Z1.
Z1 = [? ]°
Enter
Answer

Answer 1

∠1=140

Explanation:

∠1=∠3 ( corresponding angles)

20x+60=30x+20

-20x+30x=60-20

10x=40

x=4

∠1=20x+60=20(4)+60=140