Activities for Students: Investigating Star Polygons

2010 ◽  
Vol 103 (7) ◽  
pp. 525-534
Author(s):  
Tina T. Starling ◽  
Karen F. Hollebrands

With the geometry curriculum already packed with content, who has time to introduce anything new? Many students already have difficulty with regular polygons to begin with—wouldn't an additional topic for polygons be adding fuel to the fire? Perhaps. However, if activities are carefully chosen, students can actively review prerequisite skills as well as benefit from being asked to think critically in a new way.

1995 ◽  
Vol 5 (12) ◽  
pp. 1539-1550 ◽  
Author(s):  
Y. Limon Duparcmeur ◽  
A. Gervois ◽  
J. P. Troadec
Keyword(s):  

1997 ◽  
Vol 7 (10) ◽  
pp. 1181-1189 ◽  
Author(s):  
Y. Limon Duparcmeur ◽  
J. P. Troadec ◽  
A. Gervois
Keyword(s):  

1993 ◽  
Vol 21 (4) ◽  
pp. 355-366 ◽  
Author(s):  
David L. Wallach

The moment of inertia of a plane lamina about any axis not in this plane can be easily calculated if the moments of inertia about two mutually perpendicular axes in the plane are known. Then one can conclude that the moments of inertia of regular polygons and polyhedra have symmetry about a line or point, respectively, about their centres of mass. Furthermore, the moment of inertia about the apex of a right pyramid with a regular polygon base is dependent only on the angle the axis makes with the altitude. From this last statement, the calculation of the centre of mass moments of inertia of polyhedra becomes very easy.


2010 ◽  
Vol 94 (531) ◽  
pp. 495-498 ◽  
Author(s):  
Jeremy D. King
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document