Answer:
The altitude will begin at angle D and go in a straight line downwards.
The perpendicular bisector will be a straight line going from one corner to the other corner, not directly downwards.
a=10R−153−2
Step-by-step explanation:
The answer is 131
y=-7-ax
3x-(-7-ax)=17
3x+7+ax=17
3x+ax=10
x(3+a)=10
x=10,3+a=10 a=10-3 a=7