A square
a pentagon
If two of the angles of a parallelogram are acute, then the other two angles will be obtuse. Since a parallelogram contains two pairs of parallel sides, both of the acute angles and both of the obtuse angles respectively will measure the same.
A square.
a parallelogram
A rhombus is a parallelogram. It is also a quadrilateral.This means that it has four sides of equal length and four angles. The opposite angles share the same measure.
rectangle.
parallelogram
a rhombus
It is a rectangle.
They are the same because these features are the same: Opposite angles are equal Opposite sides are parrallel No right-angles Four sides-Quadrilateral
a rhombus
Yes, a parallelogram is an irregular polygon because its sides and angles are not all the same. For a shape to be a regular polygon it must be equangular (all angles are the same) and equilateral (all sides have the same length).