WHAT IS 5 + 5 ( that was just so katie dont delete this)

With: label the vertices and all the elements needed. find x

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Which statements are true about additional information for proving that the triangles are congruent check all that apply