Change to like fraction: . a 3 and 4/7 b. 3/10 and 4/13

a). 3 and 4/7

b). 3/10 and 4/13

Step-by-step explanation:

These are already in like fraction.

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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⭐

answer: i wpould go with c

step-by-step explanation: