What was the Truman Doctrine? the United States' promise that it would remove itself from active participation in world affairs
the United States' promise that it would allow the Soviet Union to dominate eastern Europe
the United States' promise that it would give up its nuclear weapons program
the United States' promise that it would help free countries fight communism

> With the Truman Doctrine, President Harry S. Truman established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces.

> The Truman Doctrine was an American foreign policy with the primary goal of containing Soviet geopolitical expansion during the Cold War.

the answer is lower nubia. plz mark brainliest i am trying to improve rank.

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34