formulas.tutorvista.com/math/octagon-formula.html

Octagon Formula is used to calculate the area and perimeter of the octagon.
Octagon ... This formula is for calculating area of a regular octagon only.

jwilson.coe.uga.edu/emat6680/parsons/mvp6690/unit/Octagon/octagon.html

Materials: Rulers for pairs, octagon perimeter worksheet, octagon area worksheet
... a general formula for the area, using the smaller shapes inside the octagon!

mathcentral.uregina.ca/qq/database/qq.02.06/martin1.html

I would like to make an octagon out of 2x4 lumber. ... us a quadratic equation we
can't easily factor, so we'll use the Quadratic Formula to find the value of x:.

rechneronline.de/pi/octagon.php

Calculations of geometric shapes and solids: Regular Octagon. ... diagonal,
height, perimeter and radius have the same unit (e.g. meter), the area has this
unit ...

chemistry.about.com/od/chemistry101/ss/2dformulas.htm

Perimeter and surface area formulas are part of the math used in common
science calculations. You While it's a good idea to memorize these formulas,
here is a ...

www.mathopenref.com/polygonregulararea.html

Formula for the area of a regular polygon. ... Most require a certain knowledge of
trigonometry (not covered in this volume, but see Trigonometry Overview).

www.calculatorsoup.com/calculators/geometry-plane/polygon.php

Calculate the unknown defining areas, circumferences and angles of a regular ...
Calculates side length, inradius (apothem), circumradius, area and perimeter. ...
octagon, 8, octagon diagram with inscribed and circumscribed circles, inradius, ...

www.had2know.com/academics/octagon-measurement-calculator.html

The side length, height, diagonals, and area of a regular octagon are all ... the
area a, and the perimeter p, then you can calculate the following from s:

www.mathwords.com/a/area_regular_polygon.htm

The area of a regular polygon is given by the formula below. area = (½)(apothem)
(perimeter). Several other area formulas are also available. ... Regular Octagon.

www.pagetutor.com/octagon_layout/

Octagon Layout Calculator by Joe Barta - jbarta@apk.net. WHAT IS IT? It's a
carpenter's aid for laying out a perfect octagon. Seeing as it's tolerance is to the ...