if it has a right angle
If it has a 90 degree angle and two acute angles then it is a right angle triangle.
A right angle is an internal angle equal to 90o You can tell if an angle is a right angle because it has a little symbol which is a square where the two lines meet to form the angle. A right angle is a quarter of a circle. Lines that are at a right angle are perpendicular to each other.
90 degree angle
If it has an obtuse angle
a right angle is a right angle
No way to tell as we don't know an angle or another side.
Because a right angle is a right angle.
A right angle is a angle with 90o
Assuming your question is what makes a right-angle, it is an angle of 90o .
It is: "angle a is not a right angle" or "angle a is greater than or less than a right angle".
The right angle.