Posted by Jane on .
What is the length of a segment whose endpoints are (5, 8) and (9,2). Please explain to me what the formula or rules for working this problem.

Math 
Steve,
think of the line segment as the hypotenuse of a right triangle. Then the legs have length (95)=4 and (2(8))=10.
So the length of the line segment is sqrt(4^2 + 10^2) = 10.77