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.
Thats already a triangle if it three sides.
A scalene triangle can be the size of a mosquito or the size of a city. The only thing you know about it is that no two of its sides are equal. If you only know that it's a scalene triangle, then there's no way to know how long any of its sides is.
A triangle can have only three sides. No triangle can have 9 sides!
By using trigonometry
Use trigonometry depending on what type of triangle it is.
By using the cosine rule in trigonometry the angles of the triangle can be worked out.
Thats already a triangle if it three sides.
A scalene triangle can be the size of a mosquito or the size of a city. The only thing you know about it is that no two of its sides are equal. If you only know that it's a scalene triangle, then there's no way to know how long any of its sides is.
A triangle can have only three sides. No triangle can have 9 sides!
By using trigonometry
Use trigonometry depending on what type of triangle it is.
Its not a triangle if it has only two sides.
If you know all three sides of a triangle, you can calculate the angles using the law of cosines. If you only want to know which angle is the smallest, it is much simpler: The angle that is opposite to the smallest side is the smallest angle; the angle that is opposite to the largest side is the largest angle.
It is the sum of all three sides. If you are only given 2 sides, you may need to use pythagoras' theorem, and if you are given an angle and a side you may need to use trigonometry.
No. It can be used on any triangle.
i can
Measure them