Are the lines a and b are parallel? Ans also find angle 1,2,3,4
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1=105° vertically opposite
4=105° " "
2=75° corresponding angle
1 =3=105° ( alternate angle )
4=105° " "
2=75° corresponding angle
1 =3=105° ( alternate angle )
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line -a and line-b is parallel
because
105+75=180
1=4=3=105
2=75
because
105+75=180
1=4=3=105
2=75
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