It's a square.
rhombus
I believe that would be a quadrilateral.
Parallel lines cut by a transversal form congruent alternate interior angles.
There are 56 pairs of congruent angles.
If a transversal intersects a pair of lines and the alternate angles are congruent, the lines are parallel.
rhombus
I believe that would be a quadrilateral.
Iy is either a 'Parallelogram' or a 'Rhombus'.
If two lines are cut by a transversal to form pairs of congruent corresponding angles, congruent alternate interior angles, or congruent alternate exterior angles, then the lines are parallel.
Parallel lines cut by a transversal form congruent alternate interior angles.
There are 56 pairs of congruent angles.
If a transversal intersects a pair of lines and the alternate angles are congruent, the lines are parallel.
A quadrilateral that is not a parallelogram (two sets of parallel sides) may be a trapezoid or a trapezium (US terms). To draw a trapezium (irregular quadrilateral), draw two parallel lines and connect them with unequal lines at non-congruent angles. If you make the angles opposite and congruent, you have drawn a trapezoid, which looks like a small stepstool with a top smaller than the base. If you make the connecting lines of equal length, you have drawn a trapezoid or parallelogram.
A trapezoid is a quadrilateral with a set of parallel lines. Because it is a quadrilateral, it has four angles.
Corresponding angles.
The lines are parallel. When a transversal intersects two lines, corresponding angles, alternate interior angles, and alternate exterior angles are congruent only if the lines are parallel. This is a fundamental property of parallel lines and transversals in geometry.
A trapezoid.