Just the one and the other two angles must be acute.
No right triangle can have any obtuse angles inside it.
An obtuse triangle can have no right angles, and has two equal angles.
A triangle can have at most one obtuse angle, but triangles do not necessarily have any obtuse angles.
one
One and the two others are acute angles
None.
3. Any triangle, whether it's obtuse or acute will always have 3 angles. Pink23
An Isosceles Triangle is a triangle with all angles less than 90o So there are no obtuse angles (between 90o to 180o).
None. An acute triangle is one in which all angles are acute. An obtuse triangle is one in which one of the angles is obtuse. A right angled triangle is one in which one angle is a right angle (90o)
it has 1
None
None because it can only have 1 right angle and 2 acute angles to be a right angle triangle and the 3 angles add up to 180 degrees.