5. Polygons – is a closed plane
figure made of several line
segments that are joined
together.
6. Sides – are called
line segments of
the polygon.
7. Vertex – they do not
cross each other and
exactly two sides meet
of a common point.
8. Classification of Polygon according
to its number of sides
Name of polygon Number of sides
Triangle
Quadrilateral
Pentagon
Hexagon
Heptagon
Octagon
Nonagon
Decagon
3
4
5
6
7
8
9
10
9. Matching Type
A B
__ 1. A polygon with 9 sides.
a. Pentagon
__ 2. A polygon with 6 sides.
b. Hexagon
__ 3. A polygon with 7 sides.
c. Heptagon
__ 4. A polygon with 5 sides.
d. Octagon
__ 5. A polygon with 8 sides.
e. Nonagon
10. Polygons – is a closed plane
figure made of several line
segments that are joined
together.
Remember:
11. Triangle has 3 sides.
Quadrilateral has 4 sides.
Pentagon has 5 sides.
Hexagon has 6 sides.
13. Direction: Answer the following. Choose your
answer in the box below that corresponds
most with your answer.
Triangle Pentagon Octagon Decagon
Quadrilateral Hexagon Nonagon Heptagon
1. _______________ has 3 sides.
2. _______________ has 4sides.
3. _______________ has 5 sides.
4. _______________ has 6 sides.
5. _______________ has 7sides.
6. _______________ has 8 sides.
7. _______________ has 9 sides.
8. _______________ has 10 sides.
