Introduction to Unit Circle in Trigonometry
The understanding of the Unit Circle is foundational in trigonometry.
For a detailed background introduction to the concept of the Unit Circle, click here.
If the Earth orbits the Sun and travels a distance of 5π6 radians, calculate
the angle in degrees the distance the Earth has travelled orbiting the sun.
Note: The Earth’s orbital radius around the Sun is 1.49 x 10^11m.
For a detailed solution, click here.