Which expression gives the correct volume of the steps? Math item stem image
CLEAR CHECK

4×4×1 cubic feet

(4×4×1)+(3×3×3) cubic feet

(4×4×1)+(3×3×1)+(2×2×1)+(1×1×1) cubic feet

(4×4×4)+(3×3×3)+(2×2×2)+(1×1×1) cubic feet

< 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⭐

won't that be plagrisim thought?

step-by-step explanation:

it would open into a square depending on the type of envelope i’m not sure about the second part

i have no idea just need points sorry

step-by-step explanation: