has anyone taken the lesson 2 unit 8 geometry a semester exam? (connections school but i think most online school tests are similar! )

: )

< 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⭐

step-by-step explanation:

1

whatvare the choices

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed