Is {x:x and it's a positive integer and a divisor of 100} bounded or not?

d

step-by-step explanation:

d

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

< 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⭐