Round 2: Write down the number of sides. TRIANGLE - 3 SIDES
OCTAGON
OCTAGON - 8 SIDES
QUADRILATERAL
QUADRILATERAL - 4 SIDES
PENTAGON
PENTAGON - 5 SIDES
Polygon - is a closed-plane figure bounded by line segments that meet only at their endpoints.
The figures below are polygons. They are closed, plane figures, made of line segments, and the segments intersect only at their endpoints.
What is a polygon?
Naming Polygon and its Parts A polygon is named using its vertices. The vertices are points A, B, and C. So, the triangle may be called triangle ABC, triangle BCA, or triangle ACB.