Twentieth century conflicts such as world war 1 and war world 2 were often followed by periods of even more fighting because they?

Since they failed to resolve key issues and created resentments between countries, twentieth-century conflicts such as World War 1 and World War 2 were often followed by periods of even more fighting

A lot of issues and concerns were opened up during the World War 1 and World War 2, thus, by the end of these wars, some of these issues were still unresolved, which in turn bred hatred and became the cause of follow-up wars.

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.

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