It's not important at all. Just like almost all the other math problems you'll see in
school, the answer isn't important, and nobody needs it. The important thing is for
you to develop the ability to look over a problem when you run into one, size it up,
see what's going on, combine that new information with things you've known from
before, and use all of that to solve the problem. That's pretty much what life is all
about, and the only way to learn that is to practice it before you need it. Math is
a great way to get your mind working that way. And that's why you screw yourself
when you cheat and get the answer from somewhere ... the answer is the one part
of the math that nobody needs and does you no good.
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You could prove two triangles are congruent by measuring each side of both triangles, and all three angles of each triangle. If the lengths of the sides are the same, and so are the angles, then the triangles are congruent... if not, then the triangles are not congruent. If the triangles have the exact same size and shape then they are congruent.
The SAS theorem is used to prove that two triangles are congruent. If the triangles have a side-angle-side that are congruent (it must be in that order), then the two triangles can be proved congruent. Using this theorem can in the future help prove corresponding parts are congruent among other things.
If I understand the question correctly, the answer is yes. Thanks to the transitive property of congruence.
Angle Angle Side is a method one can use to prove that two triangles are congruent. Basically, if any two pairs of angles and the side between these angles are congruent, then the triangles are congruent as well.
to prove two triangles are similar, get 2 angles congruent