Answer:
- yes (the given angles are co-interior {130+50=180} )
- yes( corresponding angles are equal)
- .....
- yes (exterior alternate angles are equal)
- yes ( vertically opposite angles are equal)
7) 3x=45( corresponding angles formed on parallel lines)
x=45/3
x=15
8)120=2x+10(corresponding angles formed on parallel lines)
or,120-10=2x
or,110/2=x
or,x=55
