8. Find the midpoint
of the base XY in AXYZ.

Answer:
Coordinates of the midpoint...(2;1/2)
Step-by-step explanation:
Coordinates of X(5;2) and of Y(-1;-1)
Midpoint = [ (add x coordinates of the two points)÷ 2 ; (add y coordinates of the two points) ÷ 2 ]
Mid point = [(5-1)/2 ; (2-1)/2]
Midpoint = [ 4/2 ; 1/2 ]
;Midpoint.coordinates = (2;1/2)