Ineed you guys i’m really stuck right here

Hello!

The formula for the area of a sphere is ³. As you can see, A and B are squared, not cubed, so this is not our answer.

As you can see, C just has 4, not , so it is also incorrect.

As you can see, our only matching answer is D, which completely matches our formula if the radius was 5.

I hope this helps!

< 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⭐