An obtuse triangle can have no right angles, and has two equal angles.
Obtuse angles are no more important than acute or right angles. The commonest tessellation uses squares (or rectangles) and these have right angles - not obtuse.
No right triangle can have any obtuse angles inside it.
There are no obtuse angles in a right triangle. A right triangle consists of one right angle and two acute angles.
It can have 0 or 2 right angles, 1 or 2 acute or obtuse angles.
There can be 0 to 5 right angles, or 1 to 6 obtuse angles in a hexagon.
Yes the interior angles of a regular octagon are obtuse.
right
There are 3 obtuse angles. All 3 exterior angles are obtuse. (This is, admittedly, a bit of trick question!)
obtuse
acute and obtuse.
there are 4 types of common angles. right, obtuse, acute, and straight.