Answer:
8) answer=5 9)answer=15
Step-by-step explanation:
all you have to do is replace in the following formula
[tex]\sqrt{(x2-x1)^{2}+ (y2-y1)^{2}} =d[/tex]
Where
X1: is the first number of the first point
Y1: is the second number of the first point
X2: is the first number of the second point
Y2: is the second number of the second point
you replace in the formula and solve
I attach solution
