20 points! with these questions, i don't understand at all. i've been trying for like 4 hours now. (highlighted questions are my guesses)

Most of your answers look answers look perfect too me!

Step-by-step explanation:

Here's way I think so

1. *Correct* An included angle is an angle between two sides of a triangle. It can be any angle of the triangle. Both of this lines have this angle similar.

2. *Incorrect*I think, ( I am dearly sorry of I am wrong ),  I believe that it is AAS because as you can see, Their are two angles marked as congruent in the triangle, and one side as well *The side in the middle of the shape the triangles are making.* Their is no other way to prove that their are more than one side that is congruent.

3. *Correct* Both triangle's meet at the one point/ angle N. Which make it a congruent angle as well. This make it have a side inside of two angles. ASA.

4.*Correct* Same as 3. But this time Their is a angle inside of two sides. SAS

5. *Incorrect* I'm kinda tired of typingBUT! I think that of and triangles share a side, Then that side is congruent on both sides. (Again, PLEASE excuse me of I am wrong.!!)

1. Like the person above said; An included angle is an angle between two sides of a triangle. It can be any angle of the triangle. Both of this lines have this angle similar.

2. AAS.

3. ASA.

4. SAS

5.SAS

10 you would take 50/ .2

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this