Line segment ab has a length of 3 units. it is translated 2 units to the right on a coordinate plane to obtain fine segment a'bwhat is the length of a'b'?
1 unit
2 units
3 units
5 units

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< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐