All regular polygons with more than 4 sides.
Obtuse. All regular polygons with more than 4 sides are obtuse-angled. Why? Think about a square...
This depends on the polygon.For a triangle (3-sides) : maximum 1 obtuse angle.Quadrialteral (4-sides): maximum 3 obtuse angles.For polygons with more sides, it is possible for all angles to be obtuse.
It has two obtuse angles
There cannot be an obtuse equilateral triangle. A rhombus is an equilateral quadrilateral with two obtuse angles (and two acute ones). Not sure if that counts as an obtuse equilateral. All regular polygons with more than four sides will be obtuse and equilateral. There are also other polygons that will meet these requirements. These will be squashed polygons in the same way that a rhombus is a squashed square.
All regular polygons with more than 4 sides.
Obtuse. All regular polygons with more than 4 sides are obtuse-angled. Why? Think about a square...
This depends on the polygon.For a triangle (3-sides) : maximum 1 obtuse angle.Quadrialteral (4-sides): maximum 3 obtuse angles.For polygons with more sides, it is possible for all angles to be obtuse.
It has two obtuse angles
There cannot be an obtuse equilateral triangle. A rhombus is an equilateral quadrilateral with two obtuse angles (and two acute ones). Not sure if that counts as an obtuse equilateral. All regular polygons with more than four sides will be obtuse and equilateral. There are also other polygons that will meet these requirements. These will be squashed polygons in the same way that a rhombus is a squashed square.
A rhombus have 2 obtuse angles
There are no angles they are all obtuse angles
Any number of sides of 5 and above because all interior angles of regular polygons in this category will have obtuse interior angles.
There are 3 obtuse angles in a heptagon.
A trapezium has one or two obtuse angles.
An obtuse triangle can have no right angles, and has two equal angles.
One and the two others are acute angles