-- an angle that measures 90 degrees -- an angle whose sides are mutually perpendicular
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.
A triangle with one right angle.
-- an angle that measures 90 degrees -- an angle whose sides are mutually perpendicular
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.
The right angle for pushups lying down with hands under the shoulders fingers straight and legs parallel slightly apart. Lower your body till it is 90 degrees angle at the elbows and the arms are parallel to the floor. However the rest of the body should remain stiff and the knees should not be bent.....
If you mean hypotenuse then it is the largest side of a right angle triangle and it is opposite a 90 degree angle.
Yes. My little brother Cory is only four and he can do 10 pushups in a row. The RIGHT way!!!
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