That was a typo, should be plain.
...as in plains of Africa
Rev 20:9
And they went up on the
breadth of the earth, and compassed the camp of the saints about, and the beloved city: and fire came down from God out of heaven, and devoured them.
And I saw them as they went up on the
broad plain of the earth and surrounded God's people and the beloved city. But fire from heaven came down on the attacking armies and consumed them.
And they marched across the
broad expanse of the earth and surrounded the camp of the saints and the beloved city. But fire came down from heaven and consumed them.
4114~Platos
STRONGS NT 4114: πλάτος
πλάτος, πλάτους, τό ((cf. πλάξ), from Herodotus down), breadth: Ephesians 3:18 (on which see μῆκος); Revelation 21:16; carrying with it the suggestion of great extent, τῆςγῆς, opposed to the ends or corners of the earth, Revelation 20:9; (for מֶרְחָב, Habakkuk 1:6).
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Also...Isiah new the difference between circle and ball. Are you familiar with those verses that show it?