Answer:
1, 2, 3, 4
Step-by-step explanation:
1) works 60y+(-60y)=0
2) works(-60y)+60y=0
3)works (-35x)+35x=0
4) works 35x+(-35x)=0
5) doesn't work (-35x)+100x doesn't equal 0
C
They are supplementary angles. The sum of their measurements add up to 180 degrees
1.2
Hope it helps :)
those are pretty good! all a's and b's are good! Keep up the good work!!
B and C and D
This will help,
c
x+x=90
2x=90 ,x=45 ,∆BAD=45
