geometry help needed, please
Why is line segment ab = line segment ab? what is the name of the reason/postulate/whatever it is called?
Also, if you know that you have 2 triangles and you are trying to prove they are congruent and you know that 2 sides are equal and 1 angle is equal, which reason/law/postulate do you cite?
geometry help needed, again
If you have 2 line segments, which form the 2 sides of a traingle, and have been given the fact that corresponding segments of the sides are equal, what rule could you cite to prove that the entire length of the 2 sides are the same.
I am eventually trying to prove that the triangle is isosceles.
A diagram is attached.