Answer:
The baker is going to need 900 square centimeters of paper for each mold.
Explanation:
According to the problem, the baker needs square prism molds with 30 centimeters side and 6 centimeters depth (or height).
If the molds are square prisms, that means the bottom or base is square with 30 centimeters each side. The area of the bottom is
, where
, replacing values, we have
Therefore, the baker is going to need 900 square centimeters of paper for each mold.