Comments on: Why is the formula for finding the area of a regular pentagon side squared times 1.72? http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72 Fri, 03 Feb 2012 13:07:59 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: nathan m http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72/comment-page-1#comment-1733 nathan m Sun, 24 Jan 2010 14:40:59 +0000 http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72#comment-1733 u in geo? cuz im having that same problem and have geo finals next week and need to study my butt off. it is 1/2 x apothem x perimeter (of the figure).<br><b>References : </b><br> u in geo? cuz im having that same problem and have geo finals next week and need to study my butt off. it is 1/2 x apothem x perimeter (of the figure).
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]]> By: Maverick http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72/comment-page-1#comment-1732 Maverick Sun, 24 Jan 2010 13:53:59 +0000 http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72#comment-1732 Coorect girl! Area of a regular pentagon = 1.72048 x side (squared) This is the easier one where the length of the side is given! However, there is another formula that can be used. The area of a pentagon is given by: Area = (½)x(apothem)x(perimeter) Perimeter = 5 x side Apothem = radius of incribed circle (of the pentagon) Such a formula is used to find the apothem, because from the perimeter, you can always find the side of the pentagon. Enjoy!<br><b>References : </b><br> Coorect girl!

Area of a regular pentagon = 1.72048 x side (squared)

This is the easier one where the length of the side is given! However, there is another formula that can be used.

The area of a pentagon is given by:
Area = (½)x(apothem)x(perimeter)

Perimeter = 5 x side
Apothem = radius of incribed circle (of the pentagon)

Such a formula is used to find the apothem, because from the perimeter, you can always find the side of the pentagon.
Enjoy!
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]]> By: Alex http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72/comment-page-1#comment-1731 Alex Sun, 24 Jan 2010 13:13:59 +0000 http://www.thearealist.com/area-formula/why-is-the-formula-for-finding-the-area-of-a-regular-pentagon-side-squared-times-1-72#comment-1731 It is basically the way the formula can be simplified. See: http://mathforum.org/library/drmath/view/55311.html Hopefully that can explain it for you!!!<br><b>References : </b><br> It is basically the way the formula can be simplified.

See: http://mathforum.org/library/drmath/view/55311.html

Hopefully that can explain it for you!!!
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