excel - Making diagram by vertices' coordinates -

i have vertices' coordinates build graph should this: enter image description here

the problem don't know how point coordinates excel. this:

x   y ----------- 5   16 5   13 5   10 5   7,5 5   3,5  x   y ----------- 12,5    15 12,5    8

i know may done in opengl example necessary implement in ms excel. possible using diagram tool?

i not sure mean diagram tool basic example using inserted scatter straight lines , markers chart:

so24446112 example

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