A rhombus.
a rhombus
56678 Shape is called a rhombus
I only know it's not a polygon
With no acute or obtuse angles, the shape must only have right angles. For a quadrilateral, that limits it to a square or rectangle. Because each side has a different length than the one next to it, it has to be a rectangle.(Or, it could be a shape with any amount of sides above 4, as long as the angles are all right angles)
"z" has two acute angles a triangle can have 3 acute angles but also will have a angle >= 60degrees acute (also note for every acute angle a obtuse angle is formed the sum of the obtuse and acute angle will = 360) because of this a arrow is the only shape with two acute angles and 1 obtuse
A square
2 obtuse and 2 acute in the classic kite shape.
a trapezoid :) * * * * * Not necessarily. A trapezoid can have two right angles, one acute and one obtuse angle. A parallelogram which is not a rectangle must have 2 acute and 2 obtuse angles.
Impossible.
parallelogram
An obtuse triangle or an isosceles triangle if the 2 acute angles are equal in size
4