Line AOB is a straight line Which statements are true about the angles in the figure? Select three options.
AOC and COB are complementary angles.

AOC and COB are supplementary angles

AOC and COB are adjacent angles

AOC and COB are vertical angles

AOC and COB are linear pair of angles

HURRRYYTY

< 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⭐

4+4+2x

or

2x+8

step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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