Video: Economic Systems: Definition, Types & Examples. In this lesson, you'll learn about the three major forms of economic systems, including planned, market, and mixed market economies. You'll also explore the five factors of production and what roles they play in the exchange of products or services. Economic Systems: Definition, Types & Examples.
Abraham Lincoln was our tallest president. At 6-foot-4, he would stand out even today, and he certainly towered over the men and women of his era.
How Big Are The Heads? The head of George Washington is 60 feet tall with a nose that is 21 feet tall. Theodore Roosevelt's head is slightly smaller, Abraham Lincoln's is slightly taller. Each of the eyes on Mount Rushmore are about 11 feet wide. Each mouth is about 18 feet wide.