Lackland AFB - Main BX Lackland AFB TX Main Base Exchange san antonio TX 78236. Hours (Opening & Closing Times): Mon: 8:00 AM-9:00 PM Tue: 8:00 AM-9:00 PM Wed: 8:00 AM-9:00 PM Thu: 8:00 AM-9:00 PM Fri: 8:00 AM-8:00 AM Sat: 8:00 AM-9:00 PM Sun: 10:00 AM-8:00 PM. Phone Number: 800-782-7282.
Polygons are many-sided figures, with sides that are line segments. Polygons are named according to the number of sides and angles they have. The most familiar polygons are the triangle, the rectangle, and the square. A regular polygon is one that has equal sides.
More generally, an octahedron can be any polyhedron with eight faces. The regular octahedron has 6 vertices and 12 edges, the minimum for an octahedron; irregular octahedra may have as many as 12 vertices and 18 edges.