To make a secure fit, rivets that are larger than the rivet hole are often used and

Question:

To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.871cm in diameter is to be placed in a hole 1.869 cm in diameter at 20oC, to what temperature must the rivet be cooled if it is to fit in the hole?