In Gall projections, parallels are derived from a cylinder cutting the sphere at which latitudes?

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Multiple Choice

In Gall projections, parallels are derived from a cylinder cutting the sphere at which latitudes?

Explanation:
In a cylindrical projection, parallels (lines of latitude) come from where the wrapping cylinder intersects the globe. For the Gall projection, a secant cylinder is chosen so that it cuts the sphere at 45 degrees north and 45 degrees south. Those two circles of intersection become the parallels on the map, so the parallels are at 45°N and 45°S. The other options refer to different projection types or concepts and don’t describe how Gall defines its parallels.

In a cylindrical projection, parallels (lines of latitude) come from where the wrapping cylinder intersects the globe. For the Gall projection, a secant cylinder is chosen so that it cuts the sphere at 45 degrees north and 45 degrees south. Those two circles of intersection become the parallels on the map, so the parallels are at 45°N and 45°S. The other options refer to different projection types or concepts and don’t describe how Gall defines its parallels.

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