![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\ \
\ \
\
Side Length of the Octagon is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=85e61ed61171aaf8153545d4198df8ec.png\")
\ \
Octagon has 8 equal sides, so perimeter of the octagon is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=730f6fa380be4ef4d043b6173b7aa1d4.png\")
![\"octagon](\"/userfiles/image/Library/Algebra1/octagon_pa21_p51.gif\")
\ \
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=388d5aca228e304a7fd068b5312da8da.png\")
(Substitute ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7433308842982438542324ebee69089.png\")
)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7d5682b599a786e6a9fc23c49b963da8.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=939a7e8dcc9575bb91021d76af380644.png\")
)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fdf28c87f82436ba4acfbf96010d330d.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9d7c97064a50bb40d26d48aef957b6be.png\")
) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f37fc78681354c78654a07d2e86a835e.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=64177a40754bc9a457195cb43c5cd490.png\")
)
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The perimeter of the octagon is 88 units
\