Yes, an isosceles trapezoid is one example.
Zero
None but it has end sides of equal lengths
trapezoid
trapezoid
It could be a trapezoid
It doesn't need any in order to be a trapezoid. It can have a max of two pairs of perpendicular sides.
yes
Zero
Zero
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Any polygon can have only 1 pair of perpendicular sides.
None but it has end sides of equal lengths
A right trapezoid has exactly one pair of perpendicular lines and is a quadrilateral.
right triangle
trapezoid
trapezoid rhombus parellogrm
trapezoid