A triangle is unique when the given conditions (such as side lengths or angle measures) lead to only one possible triangle configuration. For example, using the Side-Side-Side (SSS) or Side-Angle-Side (SAS) postulates guarantees a unique triangle. In contrast, conditions like Angle-Angle-Side (AAS) or Angle-Side-Angle (ASA) also yield a unique triangle, while three angles alone may not, as they can correspond to multiple triangle sizes.
All triangles are unique compared to other polygons inasmuch that they have only 3 sides and no diagonals.
Every triangle is unique, so this question cannot have a serious answer.
Nothing. It is always possible to make a duplicate triangle.
if it has a right angle
Do you mean you know the lengths of the sides but you don't know the size of any of the angles ? If that's the situation, then yes. The lengths of the sides tell you everything about the triangle, and they define one and only one unique triangle. With a little bit of trig, you can figure out what the size of each angle has to be.
All triangles are unique compared to other polygons inasmuch that they have only 3 sides and no diagonals.
Every triangle is unique, so this question cannot have a serious answer.
Nothing. It is always possible to make a duplicate triangle.
if it has a right angle
Do you mean you know the lengths of the sides but you don't know the size of any of the angles ? If that's the situation, then yes. The lengths of the sides tell you everything about the triangle, and they define one and only one unique triangle. With a little bit of trig, you can figure out what the size of each angle has to be.
Three non-collinear points do not determine a unique spherical triangle.
It is a rigid 2-dimensional shape.
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One can tell what a scalene triangle looks like by looking at each side of the triangle. A scalene triangle normally has very different length in each of its sides. It has no equal sides, and no equal angles.
The area
If its an isosceles triangle it has 1 line of symmetry but if its an equilateral triangle it has 3 lines of symmetry
From the given dimensions no kind of triangle is possible.