Topic: regular polygon list of topics
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24 items are filed under this topic.

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	A circle inscribed in a regular polygon		2018-07-12
		From Naveen: The radius of inscribed circle for n sided regular polygon of a side a is? Please with proof Answered by Penny Nom.
	External and interior angles of a regular polygon		2016-04-19
		From pearl: a polygon has n sides.The exterior angle is 8 times the interior angle find the value of the interior angle find the value of n Answered by Penny Nom.
	The interior and external angles of a regular polygon		2016-02-17
		From percy: a regular polygon has n sides .The size of each interior angle is eight times the size of each exterior angle . 1.find the size of each exterior angle 2.calculate the value of n Answered by Penny Nom.
	Intersection points and diagonals		2013-09-11
		From Kenneth: I was wondering, is there a relationship between the number of sides of a regular n-gon and the number of times its diagonals intersect? Ie: 4 sides=1 intersect (center, diagonals form an 'X' ) 5 sides=5 intersects (diagonals form a star) 6 sides=13 intersects And so on. Answered by Chris Fisher.
	The fourth side of an irregular polygon		2013-02-01
		From Emran: I have a irregular polygon. I know 3 of the 4 sides, and 2 of the angles. A-B is 285, B-C is 149, and C-D is 310. Angle B is 135 degrees. and Angle C is 45 degrees. Is there a formula to solve for the final side? Thanks. Answered by Penny Nom.
	Irregular polygon and Circle that Intersects All Sides		2008-08-20
		From Xetro: Hi, Suppose you have an irregular polygon(convex or concave) with n > 3 sides. The question is - Find some circle that will cut(in limiting case - touch) all the sides of that polygon. It doesnt matter how many times it cuts the side(1 or 2), it just have to cut or touch it. How to find such a circle? or how to decide if such circle even exists? What if those segments do not form a polygon but are some arbitrary segments ? Really want to know how to do it................ Thanks a lot.. Regards, Xetro Answered by Janice Cotcher.
	A regular polygon		2008-04-09
		From chase: name the regular polygon if the sum of the measures of the polygon is 1,440 and the measure of one angle is 144 Answered by Stephen La Rocque.
	The centroid of a polygon		2007-12-29
		From David: I am playing around with an idea. I've read previous answers to questions (using surveyor calculation methods) related to finding the area of an irregular shape parcel of land (or irregular polygon). Is there a formula or method for calculating the centroid (mid-point) for this type of polygon. I've seen plenty of methods for calculating the mid-point for a triangle or regular shape poloygon but few for an irregular shape polygon such as a parcel of land. Thanks... Answered by Harley Weston.
	Working with x		2007-10-12
		From Robert: The question: The measure of an exterior angle of a regular polygon is given. Find the measure of an interior angle, and find the sides. 41. 36 42. 18 44. 'X' The attachment has what she has done for 41 and 42. Need help with 44 (lots of help) Thank you in advance for your site and your help. Robert Answered by Penny Nom.
	The perimeter of a regular polygon		2007-09-18
		From Ashwynn: why does the area of regular polygons with a perimeter of 1000m increase as the number of sides increase? Answered by Stephen La Rocque.
	The area of an irregular polygon		2007-06-27
		From chris: finding square footage of a polygon with unequal measurements Answered by Stephen La Rocque and Harley Weston.
	Discovering the incircle of an irregular polygon		2007-05-25
		From Joaquim: I've been searching in some books and many websites, but I couldn't find a formula or algorithm for discovering the incircle of an irregular polygon, could you please help me? Answered by Walter Whiteley.
	Interior and exterior angles		2007-04-02
		From Anuj: If in a regular polygon, each exterior angle is twice the interior angle,find the number of sides? Answered by Leeanne Boehm.
	An irregular polygon		2007-03-06
		From Dike: How do i construct an irregular polygon Answered by Penny Nom.
	Irregular multi sided polygon		2007-01-20
		From Graham: I have an irregular polygon. I know the length of all the sides and know approximately all the internal angles. Is there a formula or table that can calculate the area for me? Answered by Steve La Rocque, Chris Fisher and Penny Nom.
	The area of an irregular pentagon		2007-01-18
		From Ranjit: I would like to find the area of an irregular pentagon where the total perimeter is 1000m. Is there a Heron's formula for this? Answered by Stephen La Rocque.
	The area of a lot		2006-08-05
		From Lyn: I have no idea how to find the square feet of an uneven polygon. I am in the process of making a land agreement and need to know. Please tell me how to figure out the footage and acreage of land as follows. road-front 360' back 360' left side 220' right side 180' Answered by Penny Nom.
	An irregular quadrilateral		2006-02-04
		From Christopher: Is there such a shape as an irregular quadrilateral with 4 equal sides? Answered by Penny Nom.
	Subdividing a polygon into triangles		2006-01-26
		From Adam: is there an algorithm to divide a regular polygon into N equilateral triangles having the same area (no limit on N), or if not, an algorithm to divide a regular polygon into N triangles having the same shape and size? Answered by Chris Fisher.
	The angles in a regular polygon		2003-12-21
		From Ernie: If i have a measure of one interior angle of a polygon, how can i find the number of sides it has? Answered by Penny Nom.
	A regular polygon		2003-02-26
		From Melissa: The measure of each interior angle of a regular polygon is eight times that of an exterior angle of the polygon. How many sides does the polygon have? Answered by Penny Nom.
	Area of a regular polygon		2001-05-01
		From Carl: What is the formula for finding the area of a regular Hexagon and a regular Pentagon Answered by Penny Nom.
	Angles in Polygons		1999-01-21
		From Jen: How do u find the interior angles of a pentagon when you are given 4 of the angles and you need to find the fifth? If you are given the measure of each exterior angle of a regular polygon, how do you figure out how many sides the polygon has? i need all information on polygons and how to find their angles!!! Answered by Jack LeSage.
	Sides in a Regular Polygon		1996-12-06
		From Rick Moss: If you are given the measure of each interior angle (162 degrees) of a regular polygon. How many sides does the polygon have? Answered by Penny Nom.

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