It is called a Rhombus.
They are rhombus and parallelogram.
A trapezoid.A rhombus.
Most of the time.If a quadrilateral contains no parallel lines or two pairs of parallel lines then it is not a trapezium.
Iy is either a 'Parallelogram' or a 'Rhombus'.
A rectangle is a quadrilateral with two pairs of parallel lines, meeting at right angles. So is a square.
It is a rectangle.
If the two lines are parallel, then you get 4 pairs of vertical angles. If the two lines are not parallel, then we get 6 pairs of vertical angles.