If it's a scalene then yes. one. otherwise no.
Except an isosceles triangle can also have a right angle between the sides of equal length; the equal angles then being 45o each.
A triangle can have at most one right angle.
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0. A right triangle, by definition, will never include any obtuse angles.
A triangle can never have three right angles
In a right angled triangle the two other angles are acute.
In a right angled triangle the two other angles are acute.
The sum of any two angles - whether one of them is a right angle or not - must be less than 180 degrees, since the sum of all three angles is 180 degrees.the sum of the measures of any two non-right angles in a right triangle equals 90 degrees.