What are the options it gives you?
Step-by-step explanation:
Let the measure of required angle be x degree

Thus, first option is the correct answer.
Answer:
1.6666666666666...
Step-by-step explanation:
10/6=5/3=1.6666666...
The key idea of the transformation called a rotation is the moving of the plane a certain angle around a fixed point.
Answer:
The area of the base is 8pi and the radius is 2sqrt(2)
Step-by-step explanation: