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the options are
40
80
120
140
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Here we go ~

According to given figure,

[tex]\qquad \sf \dashrightarrow \: \angle ABC + 60° = 180°[/tex]

[tex]\qquad \sf \dashrightarrow \: \angle ABC = 180 \degree - 60 \degree[/tex]

[ By linear pair ]

[tex]\qquad \sf \dashrightarrow \: \angle ABC = 120 \degree [/tex]

now, we can see that :

[tex]\qquad \sf \dashrightarrow \: \angle ABC + \angle BAC = \angle 1 [/tex]

[ By Exterior angle property of Triangle ]

[tex]\qquad \sf \dashrightarrow \: \angle 1 = 20 \degree + 120 \degree[/tex]

[tex]\qquad \sf \dashrightarrow \: \angle 1 = 140 \degree[/tex]
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