Yes the interior angles of a regular octagon are obtuse.
No there isn't
A rhombus.
it is a rhombus
a pretty wierd shape
"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.
parallelogram
An obtuse triangle or an isosceles triangle if the 2 acute angles are equal in size
4
Yes the interior angles of a regular octagon are obtuse.
no....
With 2 acute and 2 obtuse angles it has 4 angles - the shape is a quadrilateral. The shape can be one of trapezium, parallelogram, rhombus, kite or a general quadrilateral. With the two acute angles next to each other (forcing the two obtuse angles to be next to each other) the shape can be either a trapezium or a general quadrilateral.
polygon
A trapezium
No there isn't