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 1.701 cm in diameter is to be placed in a hole 1.700 cm in diameter at 30°C. To what temperature must the rivet be cooled if it is to fit in the hole?

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 1.701 cm in diameter is to be placed in a hole 1.700 cm in diameter at 30°C. To what temperature must the rivet be cooled if it is to fit in the hole?