All regular polygons with more than 4 sides.
Hexagon
Yes the interior angles of a regular octagon are obtuse.
There is no three-sided shape with two obtuse angles, because the three interior angles of a three-sided shape, which is a triangle, add up to 180 degrees, and two obtuse angles would be over 180 degrees.
A shape with two obtuse angles is a quadrilateral, specifically a type called a trapezoid (or trapezium in some regions) that can have two obtuse angles. In such a trapezoid, the two non-parallel sides can form obtuse angles with the bases. Additionally, it’s possible to have other irregular polygons with two obtuse angles, depending on their specific configurations.
A regular polygon of n sides (where n > 4) has n obtuse angles. Since there is no limit to the number of sides that a polygon can have, there can be no limit to the number of obtuse angles in a shape.
Hexagon
Yes the interior angles of a regular octagon are obtuse.
No, not if it is a randomly-drawn 8-vertex shape. Octagons only have all- obtuse angles if it is a regular octagon, like the shape of a stop sign.
2 obtuse and 2 acute in the classic kite shape.
It depends on they type of arrowhead you have. If it is a arrowhead in the shape of a directional arrow, there are no obtuse angles. The most possible obtuse angles is 1.
There is no three-sided shape with two obtuse angles, because the three interior angles of a three-sided shape, which is a triangle, add up to 180 degrees, and two obtuse angles would be over 180 degrees.
a pentagon
A shape with two obtuse angles is a quadrilateral, specifically a type called a trapezoid (or trapezium in some regions) that can have two obtuse angles. In such a trapezoid, the two non-parallel sides can form obtuse angles with the bases. Additionally, it’s possible to have other irregular polygons with two obtuse angles, depending on their specific configurations.
A regular polygon of n sides (where n > 4) has n obtuse angles. Since there is no limit to the number of sides that a polygon can have, there can be no limit to the number of obtuse angles in a shape.
A square
parallelogram
Regular octagon has 8 angles of 135o.