Answer to Question #136429 in Trigonometry for Jeth palermo

Question

Explain why the polar distance of a great circle is exactly 90°?

Answer 1

The polar distance is exactly 90 degree because, the polar distance of a great circle is the angular distance of a point on a sphere from the nearest pole and a pole is a point which Is 90 degree (perpendicular)from the circle on the surface of the the sphere.