acute, obtuse and right angles
A triangle can have at most one obtuse angle, but triangles do not necessarily have any obtuse angles.
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
No right triangle can have any obtuse angles inside it.
obtuse triangle
acute, obtuse and right angles
The triangle is an isosceles triangle.
A triangle can have at most one obtuse angle, but triangles do not necessarily have any obtuse angles.
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
obtuse triangle
Always 2 acute angels, and the third an be acute, right, or obtuse.
one
Only one of them.
No triangle can have more than one obtuse angle. If it has one, then it's an obtuse triangle.
No right triangle can have any obtuse angles inside it.
An obtuse triangle has an obtuse angle.
Not so sure about angels, but an irreugular trapezoid has 1 or 2 obtuse angles.