I believe a scalene triangle CAN have a right angle.
Def of scalene tri: a triangle with no equal sides, and no equal angles.
A triangle with angles of 90, 29, and 61. Sides of 15.0, 27.0, and 30.9
this satisfies the definition.
If you look at it the other way: can a right triangle be non-scalene, and there is only one possibility: the isosceles right triangle (45°, 45°, 90°), with sides (square_root(2), 1, and 1). It's not possible for an equilateral triangle to have a right angle. So all other right triangles are scalene (but not all scalene triangles are right triangles).
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A scalene or any other kind of triangle can have no more than one right angle, because a right angle = 90 degrees, a triangle must have total interior angles of 180 degrees and must have three angles. If there were two right angles, the third angle would have to be zero degrees, and the supposed triangle would be a straight line.
A scalene right triangle is a triangle that has no congruent sides and and one right angle.
Either an isosceles or a scalene triangle can have one right angle.
An isosceles triangle can never be a scalene triangle but it can take the shape of a right angle triangle
there is equilateral triangle, right triangle, isosceles triangle, obtuse triangle, acute triangle, scalene triangle and oblique triangle
Equilateral Triangle, Isosceles Triangle, Scalene Triangle, Right-angle triangleAcute Triangle Obtuse Triangle Right Triangle