You multiply the base by the height and then divide by 2
[(base) x (height)]/2 = area of a triangle
He served under William McKinley, Grover Cleaveland and Benjamin Harrison.
<span>President Roosevelt having created the United States Forest Service was a leading advocate to protect U.S. culture and natural resources. His direct efforts include the Federal Bird Reserve, an additional 23 National Parks, and the Act for the Preservation of American Antiquities. He set the bar for future presidents to preserve our history and resources.</span>
It has the world's; highest waterfall, second longest river, largest rain forest, and longest mountain chain.