If two points A and B are d miles apart, express angle ACB in radians and in degrees. (The diameter of Earth is approximately 8000 miles. Round your answer to the nearest minute.)

Question

If two points A and B are d miles apart, express angle ACB in radians and in degrees. (The diameter of Earth is approximately 8000 miles. Round your answer to the nearest minute.)
d = 700

oobleck · Answer

Is C the center of the earth? If so, you have an arc of a great circle, so d = rθ