Translate 4n=8(5-n) into a sentence.

Step-by-step explanation:

4n= 8(5-n)

4n=8×5-8n

4n=40-8n

collect like terms

4n+8n=40

12n=40

12n/12 =40/12

n= 3.33

< 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⭐