CD has an endpoint at (2,-1)and a midpoint at (8,3). which measure is closest to the length of CD?

5 answers

the distance from end to end is twice the distance from midpoint to end.

That should get you started. I assume you know how to get the distance between two points. . .
do I use the distance formula
that would be a good guess, if you want to find the distance, eh?
thanks Steve
In triangle ABC ,if A=38degre,B=27degre,b=17m find a and c?