Answer : The value of
is
.
Explanation :
As we are given 6 right angled triangle in the given figure.
First we have to calculate the value of
.
Using Pythagoras theorem in triangle 1 :




Now we have to calculate the value of
.
Using Pythagoras theorem in triangle 2 :





Now we have to calculate the value of
.
Using Pythagoras theorem in triangle 3 :





Now we have to calculate the value of
.
Using Pythagoras theorem in triangle 4 :





Now we have to calculate the value of
.
Using Pythagoras theorem in triangle 5 :





Now we have to calculate the value of
.
Using Pythagoras theorem in triangle 6 :





Therefore, the value of
is
.
It focuses on the main foreign policy events, such as World War I, the Paris Peace Conference, the establishment of the League of Nations, the Munich Agreement, World War II, the Yalta Conference, the establishment of the United Nations, the Cold War, and the emergence of the European Union.
.......... therefore
<em>The</em><em> </em><em>answer</em><em> </em><em>is</em><em>:</em><em> </em>
B.