Any polygon must have at least three sides. So a shape with only one pair of adjacent sides must be lenticular (shaped like a lens) else it is some very odd shape.
Chat with our AI personalities
A trapezoid has exactly one pair of parallel sides
trapezoid
right triangle
A figure with exactly one pair of opposite sides can have only two sides in total and so is simply an obtuse angle.A figure with exactly one pair of opposite sides can have only two sides in total and so is simply an obtuse angle.A figure with exactly one pair of opposite sides can have only two sides in total and so is simply an obtuse angle.A figure with exactly one pair of opposite sides can have only two sides in total and so is simply an obtuse angle.
A trapezoid has exactly one pair of parallel sides opposite of each other. It is the only quadrilateral with this characteristic.