![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
If there are three line segments ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=030b454484386b0ebfbfe435b314d096.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=24d3da36079b284c82f6bab8e9cd8d42.png\")
then they form a triangle.
Hypothesis: If there are three line segments and .
Conclusion: then they form a triangle.
\a.
\Draw an example supporting the statement. \ \
\Diagram:
\![\"\"](\"/userfiles/56-43a.gif\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
b.
\Counter example:
\Draw the diagram:
\\
![\"\"](\"/userfiles/56-45b.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
a.
\Example supporting the statement.
\
\
b.
\Counterexample diagram:
\