Hi there !
You have a formule. You just have to apply it.
Let's do it then !
First of all, you must write the coordinates of the point E and F.
Therefore :
So here, we have :
Now, Let's apply the formula :
In short, the answer would be : B)
.
Hope this helps !
Photon
You have a formule. You just have to apply it.
Let's do it then !
First of all, you must write the coordinates of the point E and F.
Therefore :
So here, we have :
Now, Let's apply the formula :
In short, the answer would be : B)
Hope this helps !
Photon