Answer:
Perpendicular means like making 4 right angles at the intersection, right? So do a light directly upwards through line t from point a. And for 2, do a line from point a to the center of BC, B to the center of AC, and C to the center of AB
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Quadrant 2
Step-by-step explanation:
The top right corner is Quadrant 1, the top left corner is Quadrant 2, the bottom left corner is Quadrant 3, and the bottom right corner is Quadrant 4.
The point A is in the top left corner, meaning that it's in Quadrant 2. 
Hope this helps!
 
        
             
        
        
        
Answer:
I missed the part where that's my problem
 
        
                    
             
        
        
        
X+6=11
X-11=-6
5x=25
2x=10
2x+15=25