Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…
Regular pentagon inscribed in a circle, circumscribed about a circle.
Illustration of a how to construct a pentagon similar to two given pentagons.
Illustration of an irregular pentagon. This is also an example of a concave polygon with symmetry.
Illustration of an irregular pentagon. This is also an example of a convex polygon with symmetry.
Illustration of an irregular pentagon. This is also an example of a convex polygon with symmetry.
Illustration of 2 regular congruent pentagons that have the same center. One pentagon has been rotated…
Illustration of 4 regular congruent pentagons that have the same center. Each pentagon has been rotated…
Illustration of 8 regular congruent pentagons that have the same center. Each pentagon has been rotated…
Draw the plan and elevation of a polygon of which the real shape and position in a given plane are known.
Illustration of a concave polygon. A concave polygon is a polygon of which tow or more sides, if produced,…
Illustration of a convex polygon. A polygon is convex when no side when produced will enter the polygon.
Illustration of crossed polygon. This is not generally considered to be a real polygon.
Illustration of crossed polygon. This is not generally considered to be a real polygon.
Illustration of crossed polygon. This is not generally considered to be a real polygon.
Illustration of crossed polygon. This is not generally considered to be a real polygon.
Illustration of a polygon with a diagonal drawn. A diagonal of a polygon is a line joining the vertices…