Concept explainers
To check whether the given postulate of plane Euclidean geometry has a corresponding statement in spherical geometry.
Answer to Problem 3BCYP
For spherical geometry, through any two points there is exactly one minor arc of a great
Explanation of Solution
Given information: Through any two points there is exactly one segment
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.
Between any two points there will be exactly one arc of a great circle.
Therefore the corresponding statement of ‘Through any two points there is exactly one segment’ for spherical geometry is: through any two points there is exactly one minor arc of a great circle
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