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It is simply a right angle triangle but if the sides were the same then it is an isoceles right angle triangle
a triangle with two sides the same length and no right angle
If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.
It is a scalene triangle
It is an isosceles right angle triangle