That is correct. You should be aware that the internal angles of a triangle always add up to 180o. So if one of those angles exceeds 90o it follows that the other two angles will add up to less than 90o and so, by definition, will be acute and not obtuse.
obtuse triangle
They can only intersect at the circumcentre, which is a point outside the triangle, beyond the side opposite the obtuse angle.
False, because a triangle can have only 1 obtuse angle
it i a triangle that only has one obtuse angle
no right angle with only one angle is obtuse
No because it only has a Right angle. It doesn't have an Obtuse angle, or other angles.
No because it can only contain a right angle and two acute angles
obtuse triangle
They can only intersect at the circumcentre, which is a point outside the triangle, beyond the side opposite the obtuse angle.
One of them.
False, because a triangle can have only 1 obtuse angle
it i a triangle that only has one obtuse angle
An isosceles obtuse triangle is a triangle with 1 obtuse angle and only 2 congruent sides.
no right angle with only one angle is obtuse
no, it only has 1 obtuse angle.
A triangle can have only one obtuse angle
If you are classifying triangles by their angles, an obtuse triangle has one obtuse angle and two acute angles. A triangle can have at most one obtuse angle. If the two acute angles are congruent, the triangle would also be isosceles.