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Четырехугольники

Соотнесите вопросы и ответы при выполнении стека

QuestionAnswer
Многоугольник - это ... многоугольник, который расположен по одну сторону от каждой прямой, проходящей через две его соседние вершины.
Параллелограмм - это ... четырехугольник, у которого две стороны параллельны, а две другие стороны не параллельны.
Трапеция - это ... параллелограмм, у которого все стороны равны.
Прямоугольник - это ... параллелограмм, у которого все углы прямые.
Ромб - это ... прямоугольник, у которого все стороны равны.
Квадрат - это ... фигура, составленная из отрезков так, что смежные отрезки не лежат на одной прямой, а несмежные отрезки не имеют общих точек.
Выпуклый многоугольник - это ... четырехугольник, у которого противоположные стороны попарно параллельны.
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