Answer:
1+5+2+8
Step-by-step explanation:
By using pythagoras theorem the problem can be solved;
(hypotenuse)^2=(pythagoras)^2+(base)^2
h^2=(20 mi)^2+(40 mi)^2
h^2=(400+1600) mi^2
h^2=2000 mi^2
h=√2000 mi^2
h=20√5 mi
y = whatever number you would like. Example: y = 2
1243
.