Question: what are the formulas to surface area?
Answer: Cube: Surface area = 6 × a2
Right circular cylinder: Surface area = 2 × pi × r2 + 2 × pi × r × h. ... 
Rectangular prism: Surface area = 2 × l × w + 2 × l × h + 2 × w × h. ... 
Sphere: Surface area = 4 × pi × r2 ... 
Right circular cone: Surface area = pi × r2 + pi × r ×( √(h2 + r2)) ... 
Right square pyramid: Surface area = s2 + 2 × s × l.