If you mean hypotenuse then it is the largest side of a right angle triangle and it is opposite a 90 degree angle.
The sum of the internal angles of a triangle is 180º. If B is a right angle it has 90º, so there are only 90º left for the other two angles, meaning that they cannot be right!
No, they are not always obtuse, because a scalene triangle can also sometimes be an obtuse triangle (meaning that one interior angle is obtuse), making one exterior angle acute. Scalene triangles also can be a right triangles (meaning that one interior angle is a right angle), which would make an exterior angle a right angle. Then also they can be acute triangles, in this case all 3 exterior angles are obtuse.
Because a right angle is a right angle.
Assuming your question is what makes a right-angle, it is an angle of 90o .
A triangle with one right angle.
An angle of 90 degrees is commonly referred to as a right angle - deriving from the Latin words "angulus rectus", meaning "upright angle", this is in fact what the words "right angle" refer to.
If you mean hypotenuse then it is the largest side of a right angle triangle and it is opposite a 90 degree angle.
a right angle is a right angle
The sum of the internal angles of a triangle is 180º. If B is a right angle it has 90º, so there are only 90º left for the other two angles, meaning that they cannot be right!
Every triangle have 6 main parts: 3 sides and 3 angles. On a right triangle one of the angles has to be a right angle, meaning it has a 90 degree angle.
No, they are not always obtuse, because a scalene triangle can also sometimes be an obtuse triangle (meaning that one interior angle is obtuse), making one exterior angle acute. Scalene triangles also can be a right triangles (meaning that one interior angle is a right angle), which would make an exterior angle a right angle. Then also they can be acute triangles, in this case all 3 exterior angles are obtuse.
Because a right angle is a right angle.
perpendicular. meaning that they make a right angle when they cross
A right angle is an angle of 90 degrees.
Assuming your question is what makes a right-angle, it is an angle of 90o .
A right angle is a angle with 90o