Unit 6 Contents

Estimate the answers to the following problems. Show the round numbers you used.

11. The United States has 12,383 miles of coastline along four different oceans. The Atlantic coast is 2069 miles long, the Arctic coast is 1060 miles long, and the coast of the Gulf of Mexico is 1631 miles long. About how long is the Pacific coast of the United States?
12. The United States has a total area of 3,787,319 square miles. Water covers 251,041 square miles. About how much of the United States area is land?