Use the National Archive Docs Teach Lesson President Reagan and the Cold War: Vision and Diplomacy to answer the questions below. https://www. docsteach. org/activities/student/president-re agan-and-the-cold-war-vision-and-di plomacy

Box One: first three documents
1. What was the status of U. S. Soviet relations in 1983?
2. What Soviet leader headed the Soviet Union in 1983?
3. What Soviet leader was in power in 1985?

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

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