Solve for h. -18+7h>12+9h

Step-by-step explanation:

Add 18 to both sides:

Subtract 9h from both sides:

Multiply both sides by -1 and flip the symbol:

Divide both sides by 2:

< 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⭐