Answer:
girl = 7
boy = 5
Step-by-step explanation:
yes
As an example
(x₁, y₁ ) = (1,2) and (x₂, y₂ ) = (5,3), then
d = = = =
Now let (x₁, y₁ ) = (5,3) and (x₂, y₂ ) = (1,2), then