[Solved] A zone is portion of the sphere enclosed between two planes parallel to the axis.

Q.	A zone is portion of the sphere enclosed between two planes parallel to the axis.
A.	true
B.	false
Answer» B. false
Explanation: a zone is portion of the sphere enclosed between two planes perpendicular to the axis. a lune is the portion between the two planes which contain the axis of the sphere. a sphere is approximately developed by these two methods.

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