Point m is located at (3,7). if point m is translated 2 units to the left and 4 units down, what are the coordinates of m q1 (-1,5) q2 (1,3) q3 (5,3) q4 (7,5)

< 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

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