An octagon is any closed shape with eight straight sides. In a regular octagon, unlike an irregular octagon, all the sides are equal in length. Irregular octagons can look completely different from one another.
Each interior angle of a regular octagon measures 135 degrees. Each of its exterior angles measures 45 degrees. The properties of an irregular octagon differ in that the interior angles can have measurements that are greater or less than 135 degrees. Some may have interior angles greater than 180 degrees, in which case they are concave octagons, while others may have interior angles less than 180 degrees, making them convex octagons.
Learn MoreThere are approximately 1,200 cubic feet in a 20-foot container. Measurement varies slightly and depends on the contents, type and exact capacity of the container.
Full Answer >The faces of a triangular prism are parallelograms while the two bases are triangles. This gives the prism three faces. In a regular prism, the faces are rectangles. However, some prisms lean to one side and are oblique.
Full Answer >A rectangle is a noun referring to a specific type of shape, while oblong is an adjective used to describe shapes or forms. A rectangle can be characterized as oblong.
Full Answer >The characteristics of a square are that it is a regular quadrilateral with equal sides and four 90-degree angles. Quadrilaterals can only be squares if they match a list of conditions, including that they must have two adjacent equal sides and be a rhombus with all equal angles.
Full Answer >