







Finding the area of a regular polygon 
20070504 

Dana pose la question : We are trying to figure the square footage of a tetradecagon....sort of a round house with 14 sides that are 8 ft' in length. It has a height of 9 ft. How do we figure the square footage of this? Stephen La Rocque lui répond. 





The volume of a decagonal prism 
20110529 

Susan pose la question : How do you find the volume of a decagonal prism? Penny Nom lui répond. 





Hexadecagon 
20090920 

Rick pose la question : Is there an easy way to figure the even side lengths of a Hexadecagon in layman's
terms, so I know how long to cut the exterior support boards for my pool deck.
The pool is a 16' diameter Hexadecagon and my Wife wants a 4' wide splash deck
all the way around which would make the outside 24' in diameter. Chris Fisher and Harley Weston lui répond. 





A regular decagon is inscribed in a circle 
20090312 

Renata pose la question : A regular decagon is inscribed in a circle of diameter 36 feet. Approximate the perimeter and area of the decagon. Robert Dawson lui répond. 





Area of a Decagon 
20081115 

preethi pose la question : what is the formulae of decagon? Janice Cotcher lui répond. 





Hexadecagon 
20080709 

Dave pose la question : I would like to know at what length and angle I would cut wood to make a Hexadecagon. Penny Nom lui répond. 





The diagonals of a hendecagon 
20080310 

karan pose la question : How many diagonals does a hendecagon have? Penny Nom lui répond. 





A real life example of a decagon 
20080212 

Htet pose la question : I have a math dictionary to complete by February 13, 2008, Wednesday, and I need to know what a real life example of a decagon can be. I need help on this! Penny Nom lui répond. 





The side of a decagon 
20070629 

Dale pose la question : Mathematically how can you calculate the distance of each side of a decagon?
I know the interior angles each measure 144 degrees.
Given the length of the widest point is 10 feet. Harley Weston lui répond. 





Undecagon 
20070418 

Kiara pose la question : What is the origin of the word undecagon? Stephen La Rocque lui répond. 





A 13 sided figure 
20070412 

Kiara pose la question : I was wondering what you call a 13 sided figure. I'm in
6th grade and my teacher said i could get extra credit if I figure this out. Thanks
a lot for your help.When I get extra credit I will be sure to mention you guys!
Thanks! Stephen La Rocque lui répond. 





The area of a decagon 
20070228 

heather pose la question : how do i find the apothem and area of a decagon that has a perimeter of 60? Penny Nom lui répond. 





10 friends run into each other at a bar 
20060819 

Ken pose la question : 10 friends run into each other at a bar. We will name them A,B,C,D,E,F,G,H,I AND J.
They all leave at the same time heading for seperate bars. However, A runs into B, C runs into D, E runs into F, G runs into H and I runs into J. These five groups leave again and the same thing keeps happening, but each time running in to someone they have not run into before. How many bars will it take, with each person meeting the others only once, until all of them have met each other again? Chris Fisher lui répond. 





The chord length of a polygon 
20060614 

Krishna pose la question : I have to find out the chord length of a polygon  Tetradecagon ! The Radius of the Circle is 11.5 Cms. The Circle is intersepted by 14 arcs. Then how to find out the chord length? Stephen La Rocque lui répond. 





What is the measure of the interior angles of a decagon? 
20060510 

Malissa pose la question : What is the measure of the interior angles of a decagon?
And what is the measure of each interior angle of a regular decagon? Stephen La Rocque lui répond. 





The area of a regular decagon 
20060306 

Ester pose la question : how do i find the area of a regular decagon with sides of length 6 cm and an apothem of 9.2 cm? Stephen La Rocque lui répond. 





What is the sum of the measures of the angles of a decagon? 
20051015 

Dianna pose la question : What is the sum of the measures of the angles of a decagon? Penny Nom lui répond. 





Cubic yards of concrete 
20040929 

Tanya pose la question : We are starting up a new business and for the business we will be required to order concrete for various shapes. Right now we have a job that requires a concrete slab that a decagon it is 1403/4" from flat side to flat side, 74" from point to center and each flat side is 46" The pad should be 4" thick with 12"x12" continuous footing. Harley Weston lui répond. 





The sum of the areas of two regular decagons 
20020527 

A parent pose la question : The sum of the areas of two regular decagons is 39 square inches, and their radii are in the ratio of 2:3. Find the area of the larger decagon. Paul Betts lui répond. 





Undecagon 
20010221 

Karen pose la question : I need to know what kind of a polygon an undecagon is and how many sides it has. This is a problem in my math book. Penny Nom and Michael Tsatsomeros lui répond. 





Hendecagon 
20001009 

Jillian pose la question : I need an example of a object that is in the shape of a hendecagon. I know what the shape is but I cannot come up with a real life example of an object that is this shape. Chris Fisher lui répond. 

