Answer:
This is not a triangle
Step-by-step explanation:
If you use the triangle inequality theorem you can reach your answer.
The theorem states that if you add the length of any 2 sides together, you will have a length greater than the length of the other side. Using this method we can easily see that 7+6=13 which is less than 21. Meaning this is not a triangle
Answer:
you didn't attach a picture
Answer:
<C
Step-by-step explanation:
We can draw a diagram and we see that <C or vertice C is opposite to side AB. Therefore, <C is the angle that is opposite to side AB.