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Making a square(3)
Various quadrangle EFGH are made by quadrangle ABCD.
I want to make EFGH a square.
How would you make EFGH a square by movable points?
:
(1)-1
:
(1)-2
:
(2)-1
:
(2)-2
:
(3)-1
:
(3)-2
:
(4)-1
:
(4)-2
Forum of Geometric Constructor
by
Y.Iijima