Answer:
(2)6
Step-by-step explanation:
B(6,1),C(6,7)
Where
x1=6
y1=1
x2=6
y2=7
Distance formula=√(x2-x1)²+(y2-y1)²
D.F=√(6-6)²+(7-1)²
D.F=√(0)²+(6)²
D=√(6)²
D=6
