Length of Line Segment- Distance

                   Lesson 1

 

                                           Problem:  Find the length of the line segment whose end points are

                                                                        (-7, 8) and (4, 5).                                         

                                          

                                           Solution   d = √(x2-x1)2 + (y2-y1)2

                                           Step 1:      

                           

                                           Solution   d = √(4-(-7))2 + (5 - 8)2

                                           Step 2:          

                            

                                           Solution   d = √(11)2 + (-3)2

                                           Step 3:                                           

                   

                                           Solution   d = √121 + 9 = 11.4

                                           Step 4:

 

                                          Solution   Answer: 11.4

                                           Step 5:

                   Complete

                                           Try two practice problems:

                                                                       

                                                                Do the following:

 

A.

Find the length of the line segment whose endpoints are (-5, 7) and (8, 7).

B.

Find the distance between the points (-4, 2) and (4,-7).

 

 

 

 

 

 

© Math Worksheets World.com