What is an equation in standard form of an ellipse centered at the origin with vertex (−7, 0) and co-vertex (0, 5)?

< 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⭐

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.