Item:Q7881: Difference between revisions

Created a new Item: midsquare trapezoid, isosceles trapezoid with orthogonal diagonals
 
 
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Property / subclass of
 
Property / subclass of: midsquare quadrilateral / rank
 
Normal rank
Property / subclass of
 
Property / subclass of: isosceles trapezoid / rank
 
Normal rank