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<span>His impact on the Industrial Revolution in America was the biggest of any single U.S. citizen. His trust of oil, and control of the railroads, and oil tank cars on the railroad allowed him immense power since the federal government instituted no regulation of business to allow competition to develop in the various industries totally or in-part controlled by Rockefeller. This ended of course when Theodore Roosevelt broke the industrial trusts early in the 20th century. Rockefeller did go on to institute many worthwhile charities and foundations that have and continue to benefit people around the world. Rockefeller had no peer when it came to making business decisions that only he would make with regular success that eventually made him the wealthiest person in United States history. Using today's wealth standards his personal fortune was well over 1/4 of a trillion (that's with a T) dollars.</span>
Ptolemy's system of latitude and longitude helped in mapmaking
Answer:456
Explanation:
Get the two side lengths out of the total perimeter then subtract that then u have the length of the two other sides then divide that by two then multiply the two sides
