Use the diagram to complete the statements.
The angle of depression from point R to point S is
angle
The angle of elevation from point S to point R is angle
Angle 2 is the angle of elevation from
R
Angle 1 is the angle of
Intro
Done

< 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: when u removing the parentheses and combined them that would be : x+3y-x-y=2y