To check whether the given postulate of plane Euclidean geometry has a corresponding statement in spherical geometry.
Answer to Problem 3ACYP
For spherical geometry, ‘Arcs on a great
Explanation of Solution
Given information: A line segment is the shortest path between two points.
Formula used:
Great circle: A plane can intersect a sphere in a point or in a circle. If the circle contains the center of the sphere, the intersection is called a great circle.. The endpoints of a diameter of a great circle are called poles
In spherical geometry the ‘line segment’ refers to arcs of great circle.
Therefore, as in plane geometry, a ‘line segment’ on a sphere is the shortest ‘line’ connecting two points.
Therefore, a corresponding statement of‘A line segment is the shortest path between two points’ for spherical geometry is ‘Arcs on a great circle are the shortest path between two path’, which is called minor arcof great circle.
Chapter 12 Solutions
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