Tolong dengan cara nya ya

A(2,4)
B(4,4)

OA - OB = BA
= A - B
= (2-4) , (4-4)
= -2,0
|BA| = √(-2)^2
= 2

OB-OA = AB
= 2,0
|AB| = √2^2
= 2

Sekian, maaf kalo salah