Question: what has more surface area cube or sphere
Answer: 21 Cube side 6 a 2 ( \ displaystyle 6a ^ ( 2 ) ) a 3 ( \ displaystyle a ^ ( 3 ) ) 6 a ( \ displaystyle ( \ frac ( 6 ) ( a ) ) ) 6 Octahedron side 2 3 a 2 ( \ displaystyle 2 ( \ sqrt ( 3 ) ) a ^ ( 2 ) ) 1 3 2 a 3 ( \ displaystyle ( \ frac ( 1 ) ( 3 ) ) ( \ sqrt ( 2 ) ) a ^ ( 3 ) ) 3 6 a ≈ 7.