The sum of all the angles in this line equals 180
a+90+21=180
a+111=180
a=69
Answer:
(6)(2)+
(12)(2)
4
=18
Step-by-step explanation:
Answer:
Intersection means a line common to other lines and an action of intersection/intersecting.
hope it helps!
1-7
2-8000
3-400
Are the correct answers