This presentation is about basic concepts of polygons and how to identify what is a regular polygon.

1. Geometry
Polygons
Mrs. Nathbia Guerrero

2. Menu
• Objective
• Instructions
• Theme: “Polygons”
• Activities
• Glossary

3. Objective
• You’ll classify polygons be their sides
Instructions
• Match the polygon with its correct classification.
• Tell whether the polygon is always regular.

4. Polygons
• A polygon is a closed plane
figure that is formed by
three or more segments
called sides.
• Each side intersects exactly
with two other sides at a
vertex.
Triangle
3 sides
Quadrilateral
4 sides
Pentagon
5 sides
Hexagon
6 sides
Heptagon
7 sides
Octagon
8 sides

5. Choose the best answer:
a) Triangle
b) Quadrilateral
c) Octagon
Choose the best answer:
a) Triangle
b) Quadrilateral
c) Hexagon
Choose the best answer:
a) Heptagon
b) Pentagon
c) Octagon

6. Regular Polygons
Regular polygons are polygons with sides of
equal length and angles of equal measure.
Polygons that are not regular are irregular
figures.
Regular Irregular

7. Classify the polygons as regular or irregular
a) Regular
b) Irregular
a) Regular
b) Irregular

8. Glossary
• Segment is a part of a line, it has two endpoints.
• •
• Intersects are lines in a plane that meet at a point.
• Vertex – a point at which two sides of a polygon meet.
•
• Angle – A figure formed by two rays with the same
endpoint.
•

9. Correct

10. Incorrect

11. Correct

12. Incorrect