For numbers 19a-19d, select YES or NO to indicate whether the sum or product is equal to 8x6. 8+(4x2)=

< 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⭐

u bout ugly as   a mf

step-by-step explanation: lol