Answer: The Black Death was a great tragedy. However, the decrease in population caused by the plague increased the wages of peasants. As a result, peasants began to enjoy a higher standard of living and greater freedom.
Explanation:
Answer: Nazi leader Adolf Hitler violates the Treaty of Versailles and the Locarno Pact by sending German military forces into the Rhineland, a demilitarized zone along the Rhine River in western Germany.
"The Truman Doctrine was an American foreign policy whose stated purpose was to counter Soviet geopolitical expansion during the Cold War."

The formula is above, so if you plug it in it should be 34 squared times 27.
24 squared is 1156. Multiply 1156 by 27 and you have 31212. If you have to solve it with 3.14, just multiply that by 3.14 (Would take too long for me).