pls help
1. what is the length of AB
2. what is the length of BC
3. what is the perimeter of this triangle
4. given A(2,4) and B(5,-4), what is the slope of a line that is parallel to AB
5. what is the slope of a line that is perpendicular to AB
![pls help 1 what is the length of AB 2 what is the length of BC 3 what is the perimeter of this triangle 4 given A24 and B54 what is the slope of a line that is class=](https://us-static.z-dn.net/files/d73/4e07ad72237a732b71ebadb8475fc823.png)