Quote:
Originally Posted by wdfifteen
So a perfectly accurate level could be curved.
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A platform to align and corner balance a 4 wheel vehicle can be coplaner.
If you want to corner balance the banana splits banana buggy, the platform should be curved.
There is a difference between level & coplaner. In the example above, if the coplaner road is level at LA, it will not be level in Las Vegas.
I hope there are no "flat earther" surveyors/engineers out there.