HELP1. The two triangles in the following figure are congruent. What is m B ? (1 point)
ΔABCs ΔEFG
47°
A
96
<
E
O 37
047
O 143
049

109 trust me

step-by-step explanation:

< 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⭐

$12. that is my answer.