Answer:
i think c
Step-by-step explanation:
That equation tells us that (10 + x) = (3 + 4x). Can you handle it from there ?
Answer:
• Formular for length:

• from points given, x1 is -5, x2 is -5, y1 is -3 and y2 is -6:
• substitute:

Answer:
SAS
Step-by-step explanation:
SSS, as you used, is incorrect because we only have two of the sides. Luckily, if we look at our theorems, one of them includes two sides!
These triangles are prooven similar with SAS. We have to two of the sides that are similar (as you have showed with your work in the photo), and we also have an angle. This angle comes from the vertical angles that show up as our triangles share a point.
I hope this helps, have a nice day! :D