Consider what you know about parallelograms.
Which of the following quadrilaterals are not parallelograms? Select all that apply.
In part (a), we found that the quadrilateral pictured below is not a parallelogram. What type of quadrilateral is it?
Why is a square a regular polygon, but not a rhombus?
Determine whether the following statement is true or false.
It is possible to draw a polygon with two sides that intersect at their midpoints.
Which of the following quadrilaterals have opposite equal sides?