Posted by Aimee on .
A is the point (1,2), B is (7,4) and C is (5,6). Calculate the length of each side of the triangle ABC.

math 
Guido,
Use the distance formula for finding points on the xyplane.
Let d = distance.
d = sqrt{(x2  x1)^2 + (y2  y1)^2}
You must apply the above formula to find the distance between points A and B, B and C and A and C.
So, you must apply the distance formula 3 times.
Got it?
If not, write back. 
math 
Aimee,
emm nope i don't get it, sorry, can you do this using pythagoras??