What is a quadrilateral?
Click and drag the interactive vertices of the quadrilateral
below. What remains the same about the sketch? We will study
perimeter in more detail in a future lesson.

What is a circle?
Click and drage the handle provided in the circle below. What
remains the same about the shape? We will study perimeter and
area in more detail in a future lesson.

Quadrilaterals

Click on the polgon for interactive version. The
first one may be slow loading.

If all sides of a polygon have equal
lengths and if all angles have the same measure then the
polygon is called a Regular Polygon. Move the slider
below to see examples of regular polygons. The perimeter
(P) and area (A) calculations will be studied in a future
lesson. What remains the same for each regular polygon?
We will study perimeter and area
in more detail in a future lesson.

Below you will pictures of some common regular
polygons. Click on the polgon for interactive version. The first one may be slow loading.

Directions: Give the program the number of
sides of a regular polygon and it will give you the name of the polygon(up to 10 sides),
the sum of the measure of the interior angles, the measure of each interior angle, and the
measure of each exterior angle.

If all sides of a polygon
have equal lengths and if all angles have the same measure then
the polygon is called a Regular Polygon. Move the slider
below to see examples of regular polygons. The perimeter (P)
and area (A) calculations will be studied in a future lesson.

Below you will pictures
of some common regular polygons. Click on the polgon for interactive
version. The first one may be slow loading.